The Assabet River is a small, long river located about west of Boston, Massachusetts, United States.U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data
The National Map
, accessed October 3, 2011 The Assabet rises from a swampy area known as the Assabet Reservoir in

Westborough, Massachusetts Westborough is a town in Worcester County, Massachusetts, United States. The population was 21,567 at the 2020 Census, in over 7,000 households. Incorporated in 1717, the town is governed under the New England open town meeting system, headed ...

, and flows northeast before merging with the

Sudbury River The Sudbury River is a tributary of the Concord River in Middlesex County, Massachusetts, in the United States.U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed October 3, 2011 Originati ...

Egg Rock Egg Rock is an outcrop of Silurian Straw Hollow Diorite at the confluence of the Assabet and Sudbury rivers, where they form the Concord River in Concord, Massachusetts. The outcrop is located on a roughly oval intermittent island of about 100 ...

Concord, Massachusetts Concord () is a town in Middlesex County, Massachusetts, in the United States. At the 2020 census, the town population was 18,491. The United States Census Bureau considers Concord part of Greater Boston. The town center is near where the conflu ...

, to become the

Concord River The Concord River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed October 3, 2011 tributary of the Merrimack River in eastern Massachusetts in the United States. The river drains ...

. Th
Organization for the Assabet, Sudbury and Concord Rivers (OARS)
headquartered in

West Concord, Massachusetts West Concord is an unincorporated village and census-designated place (CDP) in the town of Concord in Middlesex County, Massachusetts, United States. The population was 6,028 at the 2010 census. Geography West Concord is located at (42.454747, ...

, is a non-profit organization dedicated to the preservation, protection, and enhancement of the natural and recreational features of these three rivers and their watershed. As the Concord River is a tributary of the

Merrimack River The Merrimack River (or Merrimac River, an occasional earlier spelling) is a river in the northeastern United States. It rises at the confluence of the Pemigewasset and Winnipesaukee rivers in Franklin, New Hampshire, flows southward into Mas ...

, it and the Assabet and Sudbury rivers are part of the larger Merrimack River watershed.

Etymology

The indigenous people of this region first named the Assabet River, though the original meaning of the word "Assabet" is uncertain. ''Assabet'' is said to come from the Algonquian word for "the place where materials for making fish nets comes from." Other cited Algonquian meanings include "at the miry place," "it is miry," or "the reedy place." It is also possible to decode the name Assabet in the

Eastern Algonquian The Eastern Algonquian languages constitute a subgroup of the Algonquian languages. Prior to European contact, Eastern Algonquian consisted of at least 17 languages, whose speakers collectively occupied the Atlantic coast of North America and adj ...

Loup language Loup is an extinct Algonquian language, or possibly group of languages, spoken in colonial New England. ''Loup'' ("Wolf") was a French colonial ethnographic term, and usage was inconsistent. In modern literature, it refers to two varieties, Loup ...

spoken by the

Nipmuc The Nipmuc or Nipmuck people are an Indigenous people of the Northeastern Woodlands, who historically spoke an Eastern Algonquian language. Their historic territory Nippenet, "the freshwater pond place," is in central Massachusetts and nearby part ...

people who lived and fished on the river prior to European settlement. The word ''assa-pe-t'' segments into: ''assa'', "turn back"; ''pe'', a short form of ''nippe'', "water", used in compounds; and a locative suffix, ''-t'', a shorter form of ''-et'' after the vowel, so its name in Loup means "at the place where the river turns back." During floods the Assabet River reaches peak height sooner than the Sudbury River, so that at the junction of the two rivers the Sudbury's direction of flow can temporarily reverse. A

Eurocentric Eurocentrism (also Eurocentricity or Western-centrism) is a worldview that is centered on Western civilization or a biased view that favors it over non-Western civilizations. The exact scope of Eurocentrism varies from the entire Western world ...

interpretation is that the river's name is a corrupted spelling of Elizabeth, or an attempted

transliteration Transliteration is a type of conversion of a text from one writing system, script to another that involves swapping Letter (alphabet), letters (thus ''wikt:trans-#Prefix, trans-'' + ''wikt:littera#Latin, liter-'') in predictable ways, such as ...

of the Nipmuc name. McAdow 1990: p. 73 Various historic maps and documents denote the river's name as Asibath, Assabeth, Asabett, Assabet, Elizbeth, Elzibeth, Elizabet, Elizabeth, Elsabeth, Elsibeth, and Isabaeth. The uniform spelling "Assabet" was not adopted until at least 1850. Historic maps up until 1835 mostly label the river the Elizabeth or some variation thereof, but by 1856 maps consistently call it the Assabet. The name's history is further complicated by the fact that the tributary Elizabeth Brook in present-day Stow flows into the Assabet River.

History

Indigenous people Indigenous peoples are culturally distinct ethnic groups whose members are directly descended from the earliest known inhabitants of a particular geographic region and, to some extent, maintain the language and culture of those original people ...

lived in what became central Massachusetts for thousands of years prior to European settlement. Indigenous oral histories, archaeological evidence, and European settler documents attest to historic settlements of the Nipmuc near and along the Assabet River. Nipmuc settlements on the Assabet intersected with the territories of three other related Algonquian-speaking peoples: the

Massachusett The Massachusett were a Native American tribe from the region in and around present-day Greater Boston in the Commonwealth of Massachusetts. The name comes from the Massachusett language term for "At the Great Hill," referring to the Blue Hills ...

Pennacook The Pennacook, also known by the names Penacook and Pennacock, were an Algonquian-speaking Indigenous peoples of the Northeastern Woodlands who lived in Massachusetts, New Hampshire, and southern Maine. They were not a united tribe but a netwo ...

, and

Wampanoag The Wampanoag , also rendered Wôpanâak, are an Indigenous people of the Northeastern Woodlands based in southeastern Massachusetts and historically parts of eastern Rhode Island,Salwen, "Indians of Southern New England and Long Island," p. 17 ...

. McAdow 1990: pp. 105–109

Geography

Bridge on Assabet River Rail Trail in Maynard MA

The Assabet River rises from a swampy area in

Westborough Westborough is a town in Worcester County, Massachusetts, United States. The population was 21,567 at the 2020 Census, in over 7,000 households. Incorporated in 1717, the town is governed under the New England open town meeting system, headed ...

known as the Assabet Reservoir. McAdow 1990: pp. 51–52 Streams located in the towns of

Shrewsbury Shrewsbury ( , also ) is a market town, civil parish, and the county town of Shropshire, England, on the River Severn, north-west of London; at the 2021 census, it had a population of 76,782. The town's name can be pronounced as either 'Sh ...

and Grafton feed the reservoir. From Westborough the river flows northeast , starting at an elevation of and descending through the towns of Northborough,

Marlborough Marlborough may refer to: Places United Kingdom * Marlborough, Wiltshire, England ** Marlborough College, public school * Marlborough School, Woodstock in Oxfordshire, England * The Marlborough Science Academy in Hertfordshire, England Austral ...

Berlin Berlin ( , ) is the capital and largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's most populous city, according to population within city limits. One of Germany's sixteen constitue ...

Hudson Hudson may refer to: People * Hudson (given name) * Hudson (surname) * Henry Hudson, English explorer * Hudson (footballer, born 1986), Hudson Fernando Tobias de Carvalho, Brazilian football right-back * Hudson (footballer, born 1988), Hudso ...

Stow Stow may refer to: Places United Kingdom * Stow, Lincolnshire or Stow-in-Lindsey, a village * Stow of Wedale or Stow, Scottish Borders, a village * Stow-on-the-Wold, Gloucestershire, a small town * Stow, Shropshire or Stowe, a village * Stow ...

, Maynard,

Acton Acton may refer to: Places Antarctica * Mount Acton Australia * Acton, Australian Capital Territory, a suburb of Canberra * Acton, Tasmania, a suburb of Burnie * Acton Park, Tasmania, a suburb of Hobart, Tasmania, formerly known as Acton Canada ...

, and finally

Concord Concord may refer to: Meaning "agreement" * Pact or treaty, frequently between nations (indicating a condition of harmony) * Harmony, in music * Agreement (linguistics), a change in the form of a word depending on grammatical features of other ...

, where it merges with the

() at an elevation of to form the

. The Assabet's watershed covers . The Assabet marshes in Stow measure about , and the

Assabet River National Wildlife Refuge The Assabet River National Wildlife Refuge (ARNWR; formerly referred to as the U.S. Army's Fort Devens-Sudbury Training Annex) is a protected National Wildlife Refuge located approximately west of Boston and west of the Eastern Massachusetts N ...

and environs in Stow, Maynard, Sudbury, and Marlborough encompass .

Average and low flow

According to U.S. Geological Survey records the average flow at the gauge in Maynard is per second. February, March, and April flows average greater than per second. July, August, and September flows average less than per second, with some weekly flows averaging less than per second. Five municipal wastewater treatment plants discharge cleaned water into the Assabet River (three upstream of the Maynard gauge). In summer months this cumulative contribution of more than per day (roughly per second) can be more than half of the river's total volume.

Human geography

As of 2020 there are nine dams on the Assabet River. Seven dams powered mills: Aluminum City, Allen Street, Hudson, Gleasondale, Ben Smith, Powdermill, and Damonmill / Westvale. The Nichols and Tyler dams are modern dams built for

flood control Flood control methods are used to reduce or prevent the detrimental effects of flood waters."Flood Control", MSN Encarta, 2008 (see below: Further reading). Flood relief methods are used to reduce the effects of flood waters or high water level ...

. Damonmill Dam is partially breached so it does not retain water, though it slows flow at flood times. A tenth mill dam—Paper Mill Dam in Maynard—was destroyed by the 1927 flood. As of 2020, 39 road bridges, two

Assabet River Rail Trail The Assabet River Rail Trail (ARRT) is a partially-completed multi-use rail trail running through the cities and towns of Marlborough, Hudson, Stow, Maynard, and Acton, Massachusetts, United States. It is a conversion of the abandoned Marl ...

pedestrian and cycle bridges, the

Taylor Memorial Bridge The Taylor Memorial Bridge is a arch bridge, double-arched reinforced concrete and cast stone footbridge, pedestrian bridge that spans the Assabet River in Hudson, Massachusetts, Hudson, Massachusetts, United States. It connects Wood Park and Ap ...

(a pedestrian bridge) in Hudson, one abandoned railroad bridge in Hudson, and one active railroad bridge in Concord cross the river. The Powdermill Dam was constructed to power the

American Powder Mills American Powder Mills (1883–1929) was a Massachusetts gunpowder manufacturing complex on the Assabet River. It expanded to include forty buildings along both sides of the river in the towns of Acton, Massachusetts, Acton, Concord, Massachusetts, ...

, a complex of 40 buildings situated on along both sides of the river through the towns of Acton, Concord, Maynard, and Sudbury. The complex manufactured

gunpowder Gunpowder, also commonly known as black powder to distinguish it from modern smokeless powder, is the earliest known chemical explosive. It consists of a mixture of sulfur, carbon (in the form of charcoal) and potassium nitrate (saltpeter). ...

between 1835 and 1940. Evidence of 23 recorded explosions during that period remains at a few locations along the river. Mark 2014: pp. 78–82 Acton Hydro Company, Inc., currently owns the dam and is renovating it to generate electricity again. None of the other historic mill dams presently provide hydropower.

Biology

Despite its small watershed area and habitat loss to

suburbanization Suburbanization is a population shift from central urban areas into suburbs, resulting in the formation of (sub)urban sprawl. As a consequence of the movement of households and businesses out of the city centers, low-density, peripheral urba ...

, the Assabet River and greater Concord River basin host many native and

naturalized Naturalization (or naturalisation) is the legal act or process by which a non-citizen of a country may acquire citizenship or nationality of that country. It may be done automatically by a statute, i.e., without any effort on the part of the in ...

species of trees, wildflowers, aquatic plants, birds, fish, mammals, reptiles, amphibians, crustaceans, and insects. Introduced invasive plants threaten the continued health and presence of native plants along the river. McAdow 1990: p. 121

Native and naturalized species

Trees native to the Assabet River area include

red maple ''Acer rubrum'', the red maple, also known as swamp maple, water maple, or soft maple, is one of the most common and widespread deciduous trees of eastern and central North America. The U.S. Forest Service recognizes it as the most abundant nativ ...

silver maple ''Acer saccharinum'', commonly known as silver maple, creek maple, silverleaf maple, soft maple, large maple, water maple, swamp maple, or white maple, is a species of maple native to the eastern and central United States and southeastern Canad ...

, black willow,

river birch ''Betula nigra'', the black birch, river birch or water birch, is a species of birch native to the Eastern United States from New Hampshire west to southern Minnesota, and south to northern Florida and west to Texas. It is one of the few heat-tol ...

, hemlock, and

swamp white oak ''Quercus bicolor'', the swamp white oak, is a North American species of medium-sized trees in the beech family. It is a common element of America's north central and northeastern mixed forests. It can survive in a variety of habitats. It forms ...

. McAdow 1990: pp. 122–124 They are joined by the native

shrub A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...

s buttonbush, common elderberry,

highbush blueberry Blueberries are a widely distributed and widespread group of perennial flowering plants with blue or purple berries. They are classified in the section ''Cyanococcus'' within the genus ''Vaccinium''. ''Vaccinium'' also includes cranberries, bi ...

multiflora rose ''Rosa multiflora'' — ( syn. ''Rosa polyantha'') is a species of rose known commonly as multiflora rose, baby rose, Japanese rose, many-flowered rose, seven-sisters rose, Eijitsu rose and rambler rose. It is native to eastern Asia, in China, ...

, smooth arrowwood, and

sweet pepperbush ''Clethra'' is a genus of flowering shrubs or small trees described as a genus by Linnaeus in 1753. McAdow 1990: pp. 125–127

Wildflower A wildflower (or wild flower) is a flower that grows in the wild, meaning it was not intentionally seeded or planted. The term implies that the plant probably is neither a hybrid nor a selected cultivar that is in any way different from the w ...

s abound along the Assabet's banks. Blue flag and yellow flag—the latter particularly abundant between Hudson and Stow—grace the riverbanks with color. McAdow 1990: pp. 128–135 Other wildflowers present in the area include arrow arum, arrowweed, bittersweet nightshade,

cardinal flower ''Lobelia cardinalis'', the cardinal flower ( syn. ''L. fulgens''), is a species of flowering plant in the bellflower family Campanulaceae native to the Americas, from southeastern Canada south through the eastern and southwestern United States ...

jewelweed ''Impatiens'' is a genus of more than 1,000 species of flowering plants, widely distributed throughout the Northern Hemisphere and the tropics. Together with the genus ''Hydrocera'' (one species), ''Impatiens'' make up the family Balsaminaceae. ...

joe-pye weed ''Eutrochium'' is a North American genus of herbaceous flowering plants in the family Asteraceae. They are commonly referred to as Joe-Pye weeds. They are native to the United States and Canada, and have non-dissected foliage and pigmented flowe ...

, pickerelweed,

purple loosestrife ''Lythrum salicaria'' or purple loosestrifeFlora of NW Europe''Lythrum salicaria'' is a flowering plant belonging to the family Lythraceae. It should not be confused with other plants sharing the name loosestrife that are members of the family P ...

, swamp loosestrife, swamp smartweed, sweetflag, true forget-me-not, and the poisonous

water hemlock ''Cicuta'', commonly known as water hemlock, is a genus of four species of highly poisonous plants in the family Apiaceae. They are perennial herbaceous plants which grow up to tall, having distinctive small green or white flowers arranged in ...

. Marsh plants habitating the area include various species of

bur-reed ''Sparganium'' (bur-reed) is a genus of flowering plants, described as a genus by Linnaeus in 1753. It is widespread in wet areas in temperate regions of both the Northern Hemisphere, Northern and Southern Hemispheres. The plants are Perennial ...

(but predominantly ''

Sparganium americanum ''Sparganium americanum'', American bur-reed, is a perennial plant found in the United States of America and Canada.http://plants.usda.gov/core/profile?symbol=SPAM ''Sparganium americanum'' Nutt. American bur-reed, United States Department of Agr ...

''),

cinnamon fern ''Osmundastrum'' is genus of leptosporangiate ferns in the family Osmundaceae with one living species, ''Osmundastrum cinnamomeum'', the cinnamon fern. It is native to the Americas and eastern Asia, growing in swamps, bogs and moist woodlands. I ...

common cattail ''Typha latifolia'' (broadleaf cattail, bulrush, common bulrush, common cattail, cat-o'-nine-tails, great reedmace, cooper's reed, cumbungi) is a perennial herbaceous plant in the genus '' Typha''. It is found as a native plant species in North a ...

, great bulrush,

marsh fern ''Thelypteris palustris'', the marsh fern, or eastern marsh fern, is a species of fern native to eastern North America and across Eurasia Eurasia (, ) is the largest continental area on Earth, comprising all of Europe and Asia. Primarily ...

, marsh mermaid weed,

reed canary grass ''Phalaris arundinacea'', or reed canary grass, is a tall, perennial bunchgrass that commonly forms extensive single-species stands along the margins of lakes and streams and in wet open areas, with a wide distribution in Europe, Asia, northern ...

, royal fern,

soft rush ''Juncus effusus'', with the common names common rush or soft rush, is a perennial herbaceous flowering plant species in the rush family Juncaceae. In North America, the common name soft rush also refers to '' Juncus interior''. Distribution '' ...

, tussock sedge, and

wild rice Wild rice, also called manoomin, Canada rice, Indian rice, or water oats, is any of four species of grasses that form the genus ''Zizania'', and the grain that can be harvested from them. The grain was historically gathered and eaten in both ...

. McAdow 1990: pp. 136–141 Native aquatic plants present on or under the Assabet's waters include common elodea, coontail,

duckweed Lemnoideae is a subfamily of flowering aquatic plants, known as duckweeds, water lentils, or water lenses. They float on or just beneath the surface of still or slow-moving bodies of fresh water and wetlands. Also known as bayroot, they arose ...

, low watermilfoil, various species of pondweeds,

water celery Water celery is a common name for several plants and may refer to: *Oenanthe (plant), ''Oenanthe'' (plant), primarily: **''Oenanthe javanica'' (Apiaceae), native to eastern Asia *''Ranunculus sceleratus'' (Ranunculaceae), native to North America, A ...

watermeal ''Wolffia'' is a genus of aquatic plants with a cosmopolitan distribution. They include the smallest flowering plants on Earth. Commonly called watermeal or duckweed, these aquatic plants resemble specks of cornmeal floating on the water. Indivi ...

, watershield, white water lily, and yellow pond lily. McAdow 1990: pp. 142–149 Given the Assabet's proximity to differing habitats such as forests, pastures, fields, and marshes, a wide variety of birds live in or migrate to the area. McAdow 1990: pp. 150–159 The belted kingfisher—the only kingfisher of the northeastern United States—summers and sometimes winters on the lower Assabet. The migratory

American yellow warbler The yellow warbler (''Setophaga petechia'') is a New World warbler species. Yellow warblers are the most widespread species in the diverse genus ''Setophaga'', breeding in almost the whole of North America, the Caribbean, and down to northern ...

Baltimore oriole The Baltimore oriole (''Icterus galbula'') is a small icterid blackbird common in eastern North America as a migratory breeding bird. It received its name from the resemblance of the male's colors to those on the coat-of-arms of 17th century L ...

common grackle The common grackle (''Quiscalus quiscula'') is a species of large icterid bird found in large numbers through much of North America. First described in 1758 by Carl Linnaeus, the common grackle has three subspecies. Adult common grackles have a ...

common yellowthroat The common yellowthroat (''Geothlypis trichas'') is a New World warbler. In the U.S. Midwest, it is also known as the yellow bandit. It is an abundant breeder in North America, ranging from southern Canada to central Mexico. The genus name ''Geo ...

eastern kingbird The eastern kingbird (''Tyrannus tyrannus'') is a large tyrant flycatcher native to the Americas. The bird is predominantly dark gray with white underbelly and pointed wings. Eastern kingbirds are conspicuous and are commonly found in open areas ...

gray catbird The gray catbird (''Dumetella carolinensis''), also spelled grey catbird, is a medium-sized North American and Central American perching bird of the mimid family. It is the only member of the "catbird" genus ''Dumetella''. Like the black catbir ...

northern flicker The northern flicker or common flicker (''Colaptes auratus'') is a medium-sized bird of the woodpecker family. It is native to most of North America, parts of Central America, Cuba, and the Cayman Islands, and is one of the few woodpecker spec ...

tree swallow The tree swallow (''Tachycineta bicolor'') is a migratory bird of the family Hirundinidae. Found in the Americas, the tree swallow was first described in 1807 by French ornithologist Louis Vieillot as ''Hirundo bicolor''. It has since been mov ...

, and wood thrush inhabit the area in the springs, summers, and sometimes falls. Other species—

black-capped chickadee The black-capped chickadee (''Poecile atricapillus'') is a small, non-migratory, North American songbird that lives in deciduous and mixed forests. It is a passerine bird in the tit family, the Paridae. It is the state bird of Massachusetts and ...

cedar waxwing The cedar waxwing (''Bombycilla cedrorum'') is a member of the family Bombycillidae or waxwing family of passerine birds. It is a medium-sized, mostly brown, gray, and yellow. This bird is named for its wax-like wing tips. It is a native of Nort ...

downy woodpecker The downy woodpecker (''Dryobates pubescens'') is a species of woodpecker, the smallest in North America. Length ranges from . Downy woodpeckers primarily live in forested areas throughout the United States and Canada, with the exception of deser ...

tufted titmouse The tufted titmouse (''Baeolophus bicolor'') is a small songbird from North America, a species in the tit and chickadee family (Paridae). The black-crested titmouse, found from central and southern Texas southward, was included as a subspecies ...

, and

white-breasted nuthatch The white-breasted nuthatch (''Sitta carolinensis'') is a species of bird in the nuthatch family Sittidae. It is a medium-sized nuthatch, measuring approximately in length. Coloration varies somewhat along the species' range, but the are lig ...

—live near the Assabet all year round. Some bird species visible from the river inhabit primarily fields, pastures, and old buildings, including

American woodcock The American woodcock (''Scolopax minor''), sometimes colloquially referred to as the timberdoodle, the bogsucker, the hokumpoke, and the Labrador twister, is a small shorebird species found primarily in the eastern half of North America. Woodcoc ...

barn swallow The barn swallow (''Hirundo rustica'') is the most widespread species of swallow in the world. In fact, it appears to have the largest natural distribution of any of the world's passerines, ranging over 251 million square kilometres globally. ...

bobolink The bobolink (''Dolichonyx oryzivorus'') is a small New World blackbird and the only member of the genus ''Dolichonyx''. An old name for this species is the "rice bird", from its tendency to feed on cultivated grains during winter and migration. ...

killdeer The killdeer (''Charadrius vociferus'') is a large plover found in the Americas. It was described and given its current scientific name in 1758 by Carl Linnaeus in the 10th edition of his ''Systema Naturae''. Three subspecies are described. Th ...

, and

song sparrow The song sparrow (''Melospiza melodia'') is a medium-sized New World sparrow. Among the native sparrows in North America, it is easily one of the most abundant, variable and adaptable species. Description Adult song sparrows have brown upperp ...

. McAdow 1990: pp. 160–161 Bobolinks nest in the grass at Orchard Hill in Stow along the Assabet. The barn swallows feed over the water near Tyler Dam in Marlborough; some of them nest in the grass with the bobolinks while others live in a barn near Orchard Hill. A subset of birds living near or on the Assabet prefer marshy environments, including

American bittern The American bittern (''Botaurus lentiginosus'') is a species of wading bird in the heron family. It has a Nearctic distribution, breeding in Canada and the northern and central parts of the United States, and wintering in the U.S. Gulf Coast ...

, black-crowned night heron,

great blue heron The great blue heron (''Ardea herodias'') is a large wading bird in the heron family Ardeidae, common near the shores of open water and in wetlands over most of North America and Central America, as well as the Caribbean and the Galápagos ...

green heron The green heron (''Butorides virescens'') is a small heron of North and Central America. ''Butorides'' is from Middle English ''butor'' "bittern" and Ancient Greek ''-oides'', "resembling", and ''virescens'' is Latin for "greenish". It was long c ...

marsh wren The marsh wren (''Cistothorus palustris'') is a small North American songbird of the wren family. It is sometimes called the long-billed marsh wren to distinguish it from the sedge wren, also known as the short-billed marsh wren. Taxonomy The ma ...

, and

red-winged blackbird The red-winged blackbird (''Agelaius phoeniceus'') is a passerine bird of the family Icteridae found in most of North America and much of Central America. It breeds from Alaska and Newfoundland south to Florida, the Gulf of Mexico, Mexico, and ...

. McAdow 1990: pp. 162–165 A variety of migratory and nonmigratory

duck Duck is the common name for numerous species of waterfowl in the family Anatidae. Ducks are generally smaller and shorter-necked than swans and geese, which are members of the same family. Divided among several subfamilies, they are a form t ...

s habitate the Assabet watershed, including

American black duck The American black duck (''Anas rubripes'') is a large dabbling duck in the family Anatidae. It was described by William Brewster in 1902. It is the heaviest species in the genus ''Anas'', weighing on average and measuring in length with an ...

blue-winged teal The blue-winged teal (''Spatula discors'') is a species of bird in the duck, goose, and swan family Anatidae. One of the smaller members of the dabbling duck group, it occurs in North America, where it breeds from southern Alaska to Nova Scotia ...

common merganser The common merganser (North American) or goosander (Eurasian) (''Mergus merganser'') is a large seaduck of rivers and lakes in forested areas of Europe, Asia, and North America. The common merganser eats mainly fish. It nests in holes in trees. ...

mallard The mallard () or wild duck (''Anas platyrhynchos'') is a dabbling duck that breeds throughout the temperate and subtropical Americas, Eurasia, and North Africa, and has been introduced to New Zealand, Australia, Peru, Brazil, Uruguay, Arge ...

pied-billed grebe The pied-billed grebe (''Podilymbus podiceps'') is a species of the grebe family of water birds. Because the Atitlán grebe (''Podilymbus gigas'') has become extinct, the Pied-Billed Grebe is now the sole extant member of the genus ''Podilymbus'' ...

ring-necked duck The ring-necked duck (''Aythya collaris'') is a diving duck from North America commonly found in freshwater ponds and lakes. The scientific name is derived from Greek , an unidentified seabird mentioned by authors including Hesychius and Aristo ...

, and

wood duck The wood duck or Carolina duck (''Aix sponsa'') is a species of perching duck found in North America. The drake wood duck is one of the most colorful North American waterfowl. Description The wood duck is a medium-sized perching duck. A typi ...

. McAdow 1990: pp. 166–169 Depending on the time of year, one may see some

birds of prey Birds of prey or predatory birds, also known as raptors, are hypercarnivorous bird species that actively hunt and feed on other vertebrates (mainly mammals, reptiles and other smaller birds). In addition to speed and strength, these predators ...

along the Assabet. The

osprey The osprey (''Pandion haliaetus''), , also called sea hawk, river hawk, and fish hawk, is a diurnal, fish-eating bird of prey with a cosmopolitan range. It is a large raptor reaching more than in length and across the wings. It is brown o ...

is uncommon but may be encountered near the Assabet, especially in Stow and Hudson. McAdow 1990: pp. 170–172 The migratory

broad-winged hawk The broad-winged hawk (''Buteo platypterus'') is a medium-sized hawk of the genus ''Buteo''. During the summer, some subspecies are distributed over eastern North America, as far west as British Columbia and Texas; they then migrate south to wi ...

is common in the fall, while the

red-tailed hawk The red-tailed hawk (''Buteo jamaicensis'') is a bird of prey that breeds throughout most of North America, from the interior of Alaska and northern Canada to as far south as Panama and the West Indies. It is one of the most common members with ...

lives in the area year-round.

American kestrel The American kestrel (''Falco sparverius''), also called the sparrow hawk, is the smallest and most common falcon in North America. It has a roughly two-to-one range in size over subspecies and sex, varying in size from about the weight of ...

s and

northern harrier The northern harrier (''Circus hudsonius''), or ring-tailed hawk, is a bird of prey. It breeds throughout the northern parts of the northern hemisphere in Canada and the northernmost USA. The northern harrier migrates to more southerly areas ...

s hunt in the area primarily during the fall. Naturally, multiple fish species inhabit the river.

Brook trout The brook trout (''Salvelinus fontinalis'') is a species of freshwater fish in the char genus ''Salvelinus'' of the salmon family Salmonidae. It is native to Eastern North America in the United States and Canada, but has been introduced elsewhere ...

chain pickerel The chain pickerel (''Esox niger'') is a species of freshwater fish in the pike family (family Esocidae) of order Esociformes. The chain pickerel and the American pickerel (''E. americanus'') belong to the ''Esox'' genus of pike. Taxonomy French ...

, and

largemouth bass The largemouth bass (''Micropterus salmoides'') is a carnivorous freshwater gamefish in the Centrarchidae ( sunfish) family, a species of black bass native to the eastern and central United States, southeastern Canada and northern Mexico, but ...

are common. The Massachusetts Division of Fisheries and Wildlife stocks brook trout in the Assabet's tributaries, including the above-mentioned Elizabeth Brook, though there are existing natural populations. McAdow 1990: pp. 174–177 Chain pickerel live in weedy areas along the Assabet. Largemouth bass thrive in the Assabet Reservoir and in the calm waters before Hudson. Other native fish one may encounter on the Assabet include American eel,

black crappie The black crappie (''Pomoxis nigromaculatus'') is a freshwater fish found in North America, one of the two types of crappies. It is very similar to the white crappie in size, shape, and habits, except that it is darker, with a pattern of black sp ...

brown bullhead The brown bullhead (''Ameiurus nebulosus'') is a fish of the family Ictaluridae that is widely distributed in North America. It is a species of bullhead catfish and is similar to the black bullhead (''Ameiurus melas'') and yellow bullhead (''Ame ...

golden shiner The golden shiner (''Notemigonus crysoleucas'') is a cyprinid fish native to eastern North America. It is the sole member of its genus. Much used as a bait fish, it is probably the most widely pond-cultured fish in the United States. It can be fo ...

northern pike The northern pike (''Esox lucius'') is a species of carnivorous fish of the genus '' Esox'' (the pikes). They are typical of brackish and fresh waters of the Northern Hemisphere (''i.e.'' holarctic in distribution). They are known simply as a ...

pumpkinseed The pumpkinseed (''Lepomis gibbosus''), also referred to as pond perch, common sunfish, punkie, sunfish, sunny, and kivver, is a small/medium-sized North American freshwater fish of the genus ''Lepomis'' (true sunfishes), from family Centrarchi ...

white sucker The white sucker (''Catostomus commersonii)'' is a species of freshwater cypriniform fish inhabiting the upper Midwest and Northeast in North America, but it is also found as far south as Georgia and as far west as New Mexico. The fish is commonl ...

white perch The white perch (''Morone americana'') is not a true perch but is a fish of the temperate bass family, Moronidae, notable as a food and game fish in eastern North America. In some places it is referred to as "Silver Bass". The name "White perc ...

yellow perch The yellow perch (''Perca flavescens''), commonly referred to as perch, striped perch, American perch, American river perch or preacher is a freshwater perciform fish native to much of North America. The yellow perch was described in 1814 by Samu ...

, and a few other small species. Common mammals living near the Assabet include

mink Mink are dark-colored, semiaquatic, carnivorous mammals of the genera ''Neogale'' and '' Mustela'' and part of the family Mustelidae, which also includes weasels, otters, and ferrets. There are two extant species referred to as "mink": the A ...

muskrat The muskrat (''Ondatra zibethicus'') is a medium-sized semiaquatic rodent native to North America and an introduced species in parts of Europe, Asia, and South America. The muskrat is found in wetlands over a wide range of climates and habitat ...

raccoon The raccoon ( or , ''Procyon lotor''), sometimes called the common raccoon to distinguish it from other species, is a mammal native to North America. It is the largest of the procyonid family, having a body length of , and a body weight of ...

red fox The red fox (''Vulpes vulpes'') is the largest of the true foxes and one of the most widely distributed members of the Order (biology), order Carnivora, being present across the entire Northern Hemisphere including most of North America, Europe ...

es, and

white-tailed deer The white-tailed deer (''Odocoileus virginianus''), also known as the whitetail or Virginia deer, is a medium-sized deer native to North America, Central America, and South America as far south as Peru and Bolivia. It has also been introduced t ...

. McAdow 1990: pp. 178–183

North American river otter The North American river otter (''Lontra canadensis''), also known as the northern river otter and river otter, is a semiaquatic mammal that endemism, only lives on the North American continent, along its waterways and coasts. An adult North Amer ...

s are less common but may be encountered along the river. The

little brown bat The little brown bat or little brown myotis (''Myotis lucifugus'') is an endangered species of mouse-eared microbat found in North America. It has a small body size and glossy brown fur. It is similar in appearance to several other mouse-ea ...

was once abundant in the area before decimation by the fungal disease

white-nose syndrome White-nose syndrome (WNS) is a fungal disease in North American bats which has resulted in the dramatic decrease of the bat population in the United States and Canada, reportedly killing millions as of 2018. The condition is named for a distincti ...

; other bat species remain present in large numbers. A few native

reptile Reptiles, as most commonly defined are the animals in the class Reptilia ( ), a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates (lizards and snakes) and rhynchocephalians ( ...

species inhabit the Assabet's waters. Some species—such as common snapping turtle,

common watersnake The common watersnake (''Nerodia sipedon'') is a species of large, nonvenomous, common snake in the family Colubridae. The species is native to North America. It is frequently mistaken for the venomous cottonmouth (''Agkistrodon piscivorus''). ...

eastern garter snake The eastern garter snake (''Thamnophis sirtalis sirtalis'') is a medium-sized snake indigenous to North America. Taxonomy and etymology The scientific name ''Thamnophis sirtalis sirtalis'' is a combination of Ancient Greek and New Latin that mea ...

, painted turtle, and ribbon snake—are relatively abundant. McAdow 1990: pp. 184–186 Other reptiles—

Blanding's turtle Blanding's turtle (''Emydoidea blandingii'') is a semi-aquatic turtle of the family Emydidae. This species is native to central and eastern parts of Canada and the United States. It is considered to be an endangered species throughout much of i ...

and

spotted turtle The spotted turtle (''Clemmys guttata''), the only species of the genus ''Clemmys'', is a small, semi-aquatic turtle that reaches a carapace length of upon adulthood. Their broad, smooth, low dark-colored upper shell, or carapace, ranges in its ...

—are critically endangered, and though present along the Assabet are rarely seen by humans. Various native

amphibian Amphibians are tetrapod, four-limbed and ectothermic vertebrates of the Class (biology), class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terres ...

s inhabit the Assabet River watershed. Common species include

American bullfrog The American bullfrog (''Lithobates catesbeianus''), often simply known as the bullfrog in Canada and the United States, is a large true frog native to eastern North America. It typically inhabits large permanent water bodies such as swamps, po ...

, green frog,

leopard frog Leopard frog is a generic name used to refer to various species in the true frog genus Lithobates. They all have similar coloration: brown or green with spots that form a leopard pattern. They are distinguished by their distribution and behavior ...

s, and

pickerel frog The pickerel frog (''Lithobates palustris'', formerly ''Rana palustris'') is a small North American frog, characterized by the appearance of seemingly "hand-drawn" squares on its dorsal surface. Distinguishing features The pickerel frog is a m ...

, all of whose vocalizations may be heard during the spring and summer. McAdow 1990: pp. 187–188

Spring peeper The spring peeper (''Pseudacris crucifer'') is a small chorus frog widespread throughout the eastern United States and Canada. They prefer permanent ponds due to their advantage in avoiding predation; however, they are very adaptable with respect ...

wood frog ''Lithobates sylvaticus'' or ''Rana sylvatica'', commonly known as the wood frog, is a frog species that has a broad distribution over North America, extending from the boreal forest of the north to the southern Appalachians, with several nota ...

, and

eastern newt The eastern newt (''Notophthalmus viridescens'') is a common newt of eastern North America. It frequents small lakes, ponds, and streams or nearby wet forests. The eastern newt produces tetrodotoxin, which makes the species unpalatable to predat ...

also live in the area. At least one

crustacean Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group ...

calls the Assabet home: freshwater

crayfish Crayfish are freshwater crustaceans belonging to the clade Astacidea, which also contains lobsters. In some locations, they are also known as crawfish, craydids, crawdaddies, crawdads, freshwater lobsters, mountain lobsters, rock lobsters, mu ...

of the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

'' Cambarus''. McAdow 1990: p. 189 The Assabet's shaded banks provide prime mating grounds for

damselfly Damselflies are flying insects of the suborder Zygoptera in the order Odonata. They are similar to dragonflies, which constitute the other odonatan suborder, Anisoptera, but are smaller and have slimmer bodies. Most species fold the wings along ...

and

dragonfly A dragonfly is a flying insect belonging to the infraorder Anisoptera below the order Odonata. About 3,000 extant species of true dragonfly are known. Most are tropical, with fewer species in temperate regions. Loss of wetland habitat threate ...

species, as they mate near streams and wetlands and lay their eggs underwater. Damselfly species in the area include bluet, black-winged damselfly, eastern forktail (Massachusetts's most common damselfly), and violet dancer. McAdow 1990: pp. 190–197 Dragonfly species mating along the Assabet include

cherry-faced meadowhawk The cherry-faced meadowhawk (''Sympetrum internum'') is a dragonfly of the genus ''Sympetrum''. It is found across northern and central United States and most of Canada, including southern portions of the Yukon and Northwest Territories. Its abd ...

and other species of the genus ''

Sympetrum ''Sympetrum'' is a genus of small to medium-sized skimmer dragonflies, known as darters in the UK and as meadowhawks in North America. The more than 50 species predominantly live in the temperate zone of the Northern Hemisphere; no ''Sympetr ...

'',

common whitetail The common whitetail or long-tailed skimmer (''Plathemis lydia'') is a common dragonfly across much of North America, with a striking and unusual appearance. The male's chunky white body (about 5 cm or 2 inches long), combined with the bro ...

, the migratory

green darner The green darner or common green darner (''Anax junius''), after its resemblance to a darning needle, is a species of dragonfly in the family Aeshnidae. One of the most common and abundant species throughout North America, it also ranges south ...

, and

twelve-spotted skimmer The twelve-spotted skimmer (''Libellula pulchella'') is a common North American skimmer dragonfly, found in southern Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean ...

. Aquatic insects plying the Assabet's waters include common water strider, giant water bugs of the genus ''

Belostoma ''Belostoma'' is a genus of insects in the hemipteran family Belostomatidae, known colloquially as giant water bugs. Members of this genus are native to freshwater habitats in the Americas, with the greatest species richness in tropical South A ...

'', grousewinged backswimmer and other species of backswimmers, various species of water boatmen, and

whirligig beetle The whirligig beetles are water beetles, comprising the family Gyrinidae that usually swim on the surface of the water if undisturbed, though they swim underwater when threatened. They get their common name from their habit of swimming rapidly i ...

s of genera '' Dineutus'' and ''

Gyrinus ''Gyrinus'' is a genus of small aquatic insects, aquatic whirligig beetles in the family Gyrinidae native to the Palearctic (including Europe), the Near East, the Nearctic, North Africa, Asia and Australia. Species These species belong to the g ...

''.

Invasive species

Water caltrop The water caltrop is any of three extant species of the genus ''Trapa'': ''Trapa natans'', ''Trapa bicornis'' and the endangered ''Trapa rossica''. It is also known as buffalo nut, bat nut, devil pod, ling gok (Chinese: 菱角), ling nut, lin kok ...

, more commonly known as water chestnut, is an invasive aquatic plant native to western Asia. It was initially introduced in the United States in the 1870s in

Cambridge, Massachusetts Cambridge ( ) is a city in Middlesex County, Massachusetts, United States. As part of the Boston metropolitan area, the cities population of the 2020 U.S. census was 118,403, making it the fourth most populous city in the state, behind Boston, ...

, followed by deliberate introduction into ponds near the Concord and Sudbury Rivers. It is now an invasive, habitat-destroying plant across many eastern states, including along the Assabet River. On the Assabet River, OARS organizes an annual plant pulling event in early July. Volunteers in canoes hand-pull the surface-floating rosettes of leaves and nuts before the nuts mature and fall to the river bottom. Other invasive species in the Assabet basin include the aquatic plant European water clover and the fish

carp Carp are various species of oily freshwater fish from the family Cyprinidae, a very large group of fish native to Europe and Asia. While carp is consumed in many parts of the world, they are generally considered an invasive species in parts of ...

Extirpated species

Alewife is an

anadromous Fish migration is mass relocation by fish from one area or body of water to another. Many types of fish migrate on a regular basis, on time scales ranging from daily to annually or longer, and over distances ranging from a few metres to thousan ...

species of

herring Herring are forage fish, mostly belonging to the family of Clupeidae. Herring often move in large schools around fishing banks and near the coast, found particularly in shallow, temperate waters of the North Pacific and North Atlantic Oceans, i ...

found in North America, meaning it mates and is born in freshwater but lives most of its life in saltwater. In pre-colonial and early colonial times, during their spring mating season alewife swam from the Atlantic Ocean upstream into the

and then up the Concord, Assabet, and Sudbury rivers. The Industrial Age brought mill dams to these rivers. The dams denied alewife access to the upper reaches of the rivers, causing their local extinction.

Beaver Beavers are large, semiaquatic rodents in the genus ''Castor'' native to the temperate Northern Hemisphere. There are two extant species: the North American beaver (''Castor canadensis'') and the Eurasian beaver (''C. fiber''). Beavers ar ...

was common in the Assabet watershed in pre-colonial times. Concord was in part founded as a beaver pelt trading site between Native Americans and English colonists. Around 1630 it was estimated more than 10,000 beaver pelts were being taken annually in land that now makes up Massachusetts and

Connecticut Connecticut () is the southernmost state in the New England region of the Northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its cap ...

. Due to aggressive hunting, European settlers extirpated beaver from Massachusetts by 1750. Reintroduction to the state started in the

Berkshires The Berkshires () are a highland geologic region located in the western parts of Massachusetts and northwest Connecticut. The term "Berkshires" is normally used by locals in reference to the portion of the Vermont-based Green Mountains that ex ...

around 1930, then spread east. Beavers once again populate the Assabet River watershed: they are numerous enough that stream culverts under roads need to be periodically cleared of in-progress beaver dams, and beavers down trees on land adjacent to the river for food, dam construction, and den building. Licensed trappers are hired to remove nuisance beaver families. Where not intruding on human space, beavers improve the local ecology. Beaver dams create wetlands which foster wildlife diversity, contribute water to underlying aquifers, and combat summer droughts.

Historic floods and flood control

The official designation of major flooding on the Assabet River is a water depth of more than and a flow rate of per second as measured at the gauge maintained by the U.S. Geological Survey on a site near the Waltham Street Bridge in Maynard. The gauge site is downstream of of the making up the Assabet River drainage. Mark 2011: pp. 59–65 Major tributaries below the gauge which can contribute to downstream flooding are Fort Pond, Spence, and Nashoba brooks.

1927

According to the

National Weather Service The National Weather Service (NWS) is an Government agency, agency of the Federal government of the United States, United States federal government that is tasked with providing weather forecasts, warnings of hazardous weather, and other weathe ...

, "The 1927 hurricane season brought a tropical storm that swept northward across western New England on Nov. 3-4, 1927. As its warm, humid air rose over the mountains and hills, torrential rains fell, causing severe flooding over extensive areas in virtually all of northern New England and the upper Hudson basin in New York. Much of New England had been soaked by rains throughout October. In all, 85 people were lost." Locally, the November 11, 1927, issue of ''The Maynard News'' reported damaged bridges, flooding at mill buildings closest to the river, and flooding further east at American Powder Mills. The Waltham Street Bridge—situated next to what is now Tedeschi Food Mart in Maynard—was destroyed in the flood. The bridge dated to 1840, and was widened to accommodate an electric trolley track and sidewalk in 1900. The bridge was replaced in 1928 and again in 2013.

1936

The Great Flood of 1936 was described as the worst flood in New England since 1850. Damage in Massachusetts was estimated in excess of $200 million at the time. The severe winter of 1935-36 had deep snowfalls and long cold snaps that iced streams and rivers solid. Spring came early, with mild weather and heavy rain. By mid-March, rivers were rising across the state. Locally, the flood damaged bridges and washed out roads.

1955

The 1955 floods occurred when remnants of

Hurricane Diane Hurricane Diane was the first Atlantic hurricane to cause more than an estimated $1 billion in damage (in 1955 dollars, which would be $ today), including direct costs and the loss of business and personal revenue. It formed on August ...

reached New England. The Assabet River crested at , the highest water level measured since record keeping began in 1942. According to a Maynard resident, "In August of 1955 my parents brought me to see water flowing over the bridge. We stood on the south side, on Waltham Street."

1968 and 1979

The 1968 and 1979 floods were the first major floods after two flood control dams were built upstream. Both floods peaked at at the gauge. In Maynard the 1968 flood put water over the retaining wall next to the mill buildings, necessitating sandbagging and pumping to save factory equipment belonging to

Digital Equipment Corporation Digital Equipment Corporation (DEC ), using the trademark Digital, was a major American company in the computer industry from the 1960s to the 1990s. The company was co-founded by Ken Olsen and Harlan Anderson in 1957. Olsen was president unt ...

, which owned the entire mill complex at the time. The equally high water of January 1979 did not reach the mill because Digital had heightened the retaining wall. Walnut Street flooded: AT&T had to sandbag its building on the Walnut Street side.

Flood control

Three major and eight minor flood control sites hold back high water in times of floods. The George H. Nichols Dam was built in Westborough in 1968 or 1969, the Tyler Dam in Marlborough in 1965, and the Delaney Complex (on the Elizabeth Brook tributary) in Stow in 1971. The minor sites are on other tributary brooks. Collectively, these have a flood hold-back capacity in excess of 3.5 trillion US gallons (1.3×10¹³ L). The Nichols Dam also serves as a water-providing reserve in times of low water, to help maintain some flow in the river. The two most recent major floods were in 1987 and 2010; for both, water level at the gauge peaked at , and volume was per second.

In literature

Nathaniel Hawthorne Nathaniel Hawthorne (July 4, 1804 – May 19, 1864) was an American novelist and short story writer. His works often focus on history, morality, and religion. He was born in 1804 in Salem, Massachusetts, from a family long associated with that t ...

wrote in praise of the river in his collection of short stories ''

Mosses from an Old Manse ''Mosses from an Old Manse'' is a short story collection by Nathaniel Hawthorne, first published in 1846. Background and publication history The collection includes several previously published short stories, and was named in honor of The Old Mans ...

'':

Rowing our boat against the current, between wide meadows, we turn aside into the Assabeth. A more lovely stream than this, for a mile above its junction with the Concord, has never flowed on earth, — nowhere, indeed, except to lave the interior of a poet's imagination. It is sheltered from the breeze by woods and a hillside; so that elsewhere there might be a hurricane, and here scarcely a ripple across the shaded water. McAdow 1990: p. 49

Henry David Thoreau Henry David Thoreau (July 12, 1817May 6, 1862) was an American naturalist, essayist, poet, and philosopher. A leading Transcendentalism, transcendentalist, he is best known for his book ''Walden'', a reflection upon simple living in natural su ...

regularly visited and often took his students, including

Louisa May Alcott Louisa May Alcott (; November 29, 1832March 6, 1888) was an American novelist, short story writer, and poet best known as the author of the novel ''Little Women'' (1868) and its sequels ''Little Men'' (1871) and ''Jo's Boys'' (1886). Raised in ...

, on educational boat trips up the Assabet River. Thoreau wrote a poem titled "The Assabet" to a love interest; its first

stanza In poetry, a stanza (; from Italian language, Italian ''stanza'' , "room") is a group of lines within a poem, usually set off from others by a blank line or Indentation (typesetting), indentation. Stanzas can have regular rhyme scheme, rhyme and ...

references rowing upon the river and reads:

Up this pleasant stream let's row For the livelong summer's day, Sprinkling foam where'er we go In wreaths as white as driven snow— Ply the oars, away! away!

Thoreau reflected on the Assabet's natural sensory pleasures in his journal, contrasting them favorably against the heights of human endeavor and creation:

''July 10, 1852 Assabet River''
I wonder if any Roman emperor ever indulged in such luxury as this — of walking up and down a river in torrid weather with only a hat to shade the head. What were the
baths of Caracalla The Baths of Caracalla ( it, Terme di Caracalla) in Rome, Italy, were the city's second largest Ancient Rome, Roman public baths, or ''thermae'', after the Baths of Diocletian. The baths were likely built between AD 212 (or 211) and 216/217, durin ...
to this? Now we traverse a long water plan some two feet deep; now we descend into a darker river valley, where the bottom is lost sight of and the water rises to our armpits; now we go over a hard iron pan; now we stoop and go under a low bough of the ''
Salix nigra ''Salix nigra'', the black willow, is a species of willow native to eastern North America, from New Brunswick and southern Ontario west to Minnesota, and south to northern Florida and Texas. Description ''Salix nigra'' is a medium-sized decid ...
''; now we slump into soft mud amid the pads of the ''
Nymphaea odorata ''Nymphaea odorata'', also known as the American white waterlily, fragrant water-lily, beaver root, fragrant white water lily, white water lily, sweet-scented white water lily, and sweet-scented water lily, is an aquatic plant belonging to the g ...
'', at this hour shut. McAdow 1990: p. 117

Notes

References

* * *

External links

OARS: Organization for the Assabet, Sudbury and Concord Rivers
a local conservation group
OARS info on boating and fishing, including mapsU.S. Geological Survey, Assabet River
provides current and historic river depths and flow rates {{authority control Massachusetts natural resources Rivers of Worcester County, Massachusetts Rivers of Middlesex County, Massachusetts Tributaries of the Merrimack River Rivers of Massachusetts Wild and Scenic Rivers of the United States

Etymology

History

Geography

Average and low flow

Human geography

Biology

Native and naturalized species

Invasive species

Extirpated species

Historic floods and flood control

1927

1936

1955

1968 and 1979

Flood control

In literature

See also

Notes

References

Further reading

External links