Muskeg (

Ojibwe The Ojibwe, Ojibwa, Chippewa, or Saulteaux are an Anishinaabe people in what is currently southern Canada, the northern Midwestern United States, and Northern Plains. According to the U.S. census, in the United States Ojibwe people are one of ...

: mashkiig; cr, maskīk; french: fondrière de mousse, lit. ''moss bog'') is a

peat Peat (), also known as turf (), is an accumulation of partially decayed vegetation or organic matter. It is unique to natural areas called peatlands, bogs, mires, moors, or muskegs. The peatland ecosystem covers and is the most efficien ...

-forming ecosystem found in several northern climates, most commonly in

Arctic The Arctic ( or ) is a polar regions of Earth, polar region located at the northernmost part of Earth. The Arctic consists of the Arctic Ocean, adjacent seas, and parts of Canada (Yukon, Northwest Territories, Nunavut), Danish Realm (Greenla ...

and

boreal Boreal may refer to: Climatology and geography *Boreal (age), the first climatic phase of the Blytt-Sernander sequence of northern Europe, during the Holocene epoch *Boreal climate, a climate characterized by long winters and short, cool to mild ...

areas. Muskeg is approximately synonymous with

bog A bog or bogland is a wetland that accumulates peat as a deposit of dead plant materials often mosses, typically sphagnum moss. It is one of the four main types of wetlands. Other names for bogs include mire, mosses, quagmire, and muskeg; a ...

peatland A mire, peatland, or quagmire is a wetland area dominated by living peat-forming plants. Mires arise because of incomplete decomposition of organic matter, usually litter from vegetation, due to water-logging and subsequent anoxia. All types ...

, and is a standard term in Western Canada and Alaska. The term became common in these areas because it is of

Cree The Cree ( cr, néhinaw, script=Latn, , etc.; french: link=no, Cri) are a Indigenous peoples of the Americas, North American Indigenous people. They live primarily in Canada, where they form one of the country's largest First Nations in Canada ...

origin; (ᒪᐢᑫᐠ) meaning low-lying marsh. Muskeg consists of non-living organic material in various states of

decomposition Decomposition or rot is the process by which dead organic substances are broken down into simpler organic or inorganic matter such as carbon dioxide, water, simple sugars and mineral salts. The process is a part of the nutrient cycle and is e ...

(as

), ranging from fairly intact sphagnum

moss Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) '' sensu stricto''. Bryophyta (''sensu lato'', Schimp. 1879) may also refer to the parent group bryophytes, which comprise liverworts, mosses, and hor ...

, to sedge peat, to highly decomposed

humus In classical soil science, humus is the dark organic matter in soil that is formed by the decomposition of plant and animal matter. It is a kind of soil organic matter. It is rich in nutrients and retains moisture in the soil. Humus is the Lati ...

. Pieces of

wood Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin th ...

can make up five to fifteen percent of the peat

soil Soil, also commonly referred to as earth or dirt, is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life. Some scientific definitions distinguish ''dirt'' from ''soil'' by restricting the former te ...

. The

water table The water table is the upper surface of the zone of saturation. The zone of saturation is where the pores and fractures of the ground are saturated with water. It can also be simply explained as the depth below which the ground is saturated. T ...

tends to be near the surface. The

sphagnum ''Sphagnum'' is a genus of approximately 380 accepted species of mosses, commonly known as sphagnum moss, peat moss, also bog moss and quacker moss (although that term is also sometimes used for peat). Accumulations of ''Sphagnum'' can store wa ...

moss forming it can hold fifteen to thirty times its own weight in water, which allows the spongy wet muskeg to also form on sloping ground. Muskeg patches are ideal habitats for

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 ...

pitcher plant Pitcher plants are several different carnivorous plants which have modified leaves known as pitfall traps—a prey-trapping mechanism featuring a deep cavity filled with digestive liquid. The traps of what are considered to be "true" pitcher p ...

s, agaric mushrooms and a variety of other organisms.

Composition

Muskeg forms because

permafrost Permafrost is ground that continuously remains below 0 °C (32 °F) for two or more years, located on land or under the ocean. Most common in the Northern Hemisphere, around 15% of the Northern Hemisphere or 11% of the global surface ...

clay Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4). Clays develop plasticity when wet, due to a molecular film of water surrounding the clay par ...

bedrock In geology, bedrock is solid Rock (geology), rock that lies under loose material (regolith) within the crust (geology), crust of Earth or another terrestrial planet. Definition Bedrock is the solid rock that underlies looser surface mater ...

prevents water drainage. The water from rain and snow collects, forming permanently waterlogged vegetation and stagnant pools. Muskeg is wet, acidic, and relatively infertile, which prevents large trees from growing, although stunted

shore pine ''Pinus contorta'', with the common names lodgepole pine and shore pine, and also known as twisted pine, and contorta pine, is a common tree in western North America. It is common near the ocean shore and in dry montane forests to the subalpine, ...

, cottonwood, some species of

willow Willows, also called sallows and osiers, from the genus ''Salix'', comprise around 400 speciesMabberley, D.J. 1997. The Plant Book, Cambridge University Press #2: Cambridge. of typically deciduous trees and shrubs, found primarily on moist s ...

, and

black spruce ''Picea mariana'', the black spruce, is a North American species of spruce tree in the pine family. It is widespread across Canada, found in all 10 provinces and all 3 territories. It is the official tree of the province of Newfoundland and Labra ...

are typically found in these habitats. It needs two conditions to develop: abundant rain and cool summers. A dead plant that falls on dry soil is normally attacked by

bacteria Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among ...

and

fungi A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from ...

and quickly rots. If the same plant lands in water or on saturated soil, it decomposes differently. Less oxygen is available under water, so aerobic bacteria and fungi fail to colonize the submerged debris effectively. In addition, cool temperatures retard bacterial and fungal growth. This causes slow decomposition, and thus the plant debris gradually accumulates to form

and eventually muskeg. Depending on the underlying

topography Topography is the study of the forms and features of land surfaces. The topography of an area may refer to the land forms and features themselves, or a description or depiction in maps. Topography is a field of geoscience and planetary sci ...

of the land, muskeg can reach depths greater than 30 metres (100 ft).

Description

Although at first glance muskeg resembles a

plain In geography, a plain is a flat expanse of land that generally does not change much in elevation, and is primarily treeless. Plains occur as lowlands along valleys or at the base of mountains, as coastal plains, and as plateaus or uplands ...

covered with short grasses, a closer look reveals a bizarre and almost unearthly landscape. Small stands of stunted and often dead trees, which vaguely resemble

bonsai Bonsai ( ja, 盆栽, , tray planting, ) is the Japanese art of growing and training miniature trees in pots, developed from the traditional Chinese art form of ''penjing''. Unlike ''penjing'', which utilizes traditional techniques to produce ...

, grow where land protrudes above the

, with small pools of water stained dark red scattered about. Its grassland appearance invites the unwary to walk on it, but even the most solid muskeg is spongy and waterlogged. Traveling through muskeg is a strange and dangerous experience for the unaccustomed. Muskeg can grow atop bodies of water, especially small ponds and streams. Because of the water beneath, the muskeg surface sometimes ripples underfoot. Thinner patches allow large animals to fall through, becoming trapped under the muskeg and drowning.

Moose The moose (in North America) or elk (in Eurasia) (''Alces alces'') is a member of the New World deer subfamily and is the only species in the genus ''Alces''. It is the largest and heaviest extant species in the deer family. Most adult mal ...

are at a special disadvantage in muskeg due to their long legs, minimal hoof area, and great weight. Hunters and hikers may occasionally encounter young moose in muskeg-covered ponds submerged up to their torsos or necks, having been unaware of the unstable ground.

Surface strength

Muskeg can be a significant impediment to transportation. During the 1870s, muskeg in

Northern Ontario Northern Ontario is a primary geographic and quasi-administrative region of the Canadian province of Ontario, the other primary region being Southern Ontario. Most of the core geographic region is located on part of the Superior Geological Provi ...

was reported to have swallowed a

railroad Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a pre ...

engine An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy. Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power gen ...

whole when a track was laid on muskeg instead of clearing down to

. Many other instances have been reported of heavy construction equipment vanishing into muskeg in the

spring Spring(s) may refer to: Common uses * Spring (season), a season of the year * Spring (device), a mechanical device that stores energy * Spring (hydrology), a natural source of water * Spring (mathematics), a geometric surface in the shape of a ...

as the frozen muskeg beneath the vehicle thawed. Construction in muskeg-laden areas sometimes requires the complete removal of the soil and filling with gravel. If the muskeg is not completely cleared to bedrock, its high water content will cause buckling and distortion from winter freezing, much like

. One method of working atop muskeg is to place large logs on the ground, covered with a thick layer of

or other stable material. This is commonly called a

corduroy road A corduroy road or log road is a type of road or timber trackway made by placing logs, perpendicular to the direction of the road over a low or swampy area. The result is an improvement over impassable mud or dirt roads, yet rough in the bes ...

. To increase the effectiveness of the corduroy, prevent

erosion Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited. Erosion is distin ...

,Government of Alberta: Geotechnical and Erosion Control
and allow removal of material with less disturbance to the muskeg, a

geotextile Geotextiles are permeable fabrics which, when used in association with soil, have the ability to separate, filter, reinforce, protect, or drain. Typically made from polypropylene or polyester, geotextile fabrics come in two basic forms: woven (re ...

fabric is sometimes placed down before the logs. However temporary winter access roads on muskeg (

ice road An ice road or ice bridge is a human-made structure that runs on a frozen water surface (a river, a lake or a sea water expanse).Masterson, D. and Løset, S., 2011, ISO 19906: Bearing capacity of ice and ice roads, Proceedings of the 21st Inte ...

), created by clearing the insulating snow and allowing the muskeg to freeze, are more commonly used as they are cheaper to construct and easier to decommission. Water is often sprayed on these roads to thicken the ice allowing heavy trucks and equipment to safely access remote sites in the winter.

In fiction

Jack London John Griffith Chaney (January 12, 1876 – November 22, 1916), better known as Jack London, was an American novelist, journalist and activist. A pioneer of commercial fiction and American magazines, he was one of the first American authors to ...

's short story, "Love of Life," the starving protagonist eats muskeg berries along the trail. "A muskeg berry is a bit of seed enclosed in a bit of water. In the mouth the water melts away and the seed chews sharp and bitter. The man knew there was no nourishment in the berries, but he chewed them patiently with a hope greater than knowledge and defying experience." Also, in

Rick Riordan Richard Russell Riordan Junior (; born June 5, 1964) is an American author, best known for writing the ''Percy Jackson & the Olympians'' series. Riordan's books have been translated into forty-two languages and sold more than thirty million co ...

's young adult novel ''

The Son of Neptune ''The Son of Neptune'' is a 2011 fantasy-adventure novel written by American author Rick Riordan, based on Greek and Roman mythology. It is the second book in ''The Heroes of Olympus'' series, preceded by '' The Lost Hero'' and followed by ''T ...

'', one of the protagonists accidentally gets swallowed by muskeg soil as a trap laid by the Earth goddess

Gaia In Greek mythology, Gaia (; from Ancient Greek , a poetical form of , 'land' or 'earth'),, , . also spelled Gaea , is the personification of the Earth and one of the Greek primordial deities. Gaia is the ancestral mother—sometimes parthenog ...

Gordon Lightfoot Gordon Meredith Lightfoot Jr. (born November 17, 1938) is a Canadian singer-songwriter and guitarist who achieved international success in folk, folk-rock, and country music. He is credited with helping to define the folk-pop sound of the 1960 ...

references muskeg in his song "

Canadian Railroad Trilogy "Canadian Railroad Trilogy" is a story song that was written, composed, and first performed in 1966 by Canadian singer-songwriter Gordon Lightfoot, who released his original recording of it in 1967. The song was commissioned by the Canadian Broadc ...

". In

Martha Ostenso Martha Ostenso (17 September 1900 – 24 November 1963) was a Norwegian American novelist

's novel '' Wild Geese'', the land owned and beloved by the antagonist plays an important role: "Southeast, under the ridge, bottomless and foul, lay the muskeg, the sore to Caleb's eye. In the heat of summer it gave up sickly vapours in which clouds of mosquitoes rose. Cattle and horses, breaking through the pasture fence and heading for the hay field, had disappeared beneath its spongy surface." (p. 12)

Gallery

File:Wrangell Muskeg.JPG, Stunted

growing on muskeg in

Wrangell, Alaska The City and Borough of Wrangell ( tli, Ḵaachx̱ana.áakʼw, russian: Врангель) is a borough in Alaska, United States. As of the 2020 census the population was 2,127, down from 2,369 in 2010. Incorporated as a Unified Home Rule Bor ...

. File:Tracked Excavator placing Corduroy.jpg, Tracked excavator placing corduroy on muskeg near

Rocky Mountain House Rocky Mountain House is a town in west-central Alberta, Canada. It is approximately west of Red Deer at the confluence of the Clearwater and North Saskatchewan Rivers, and at the crossroads of Highway 22 (Cowboy Trail) and Highway 11 (David Th ...

Alberta Alberta ( ) is one of the thirteen provinces and territories of Canada. It is part of Western Canada and is one of the three prairie provinces. Alberta is bordered by British Columbia to the west, Saskatchewan to the east, the Northwest Ter ...

File:Cat D300E on Corduroy Lease road.jpg,

Caterpillar Caterpillars ( ) are the larval stage of members of the order Lepidoptera (the insect order comprising butterflies and moths). As with most common names, the application of the word is arbitrary, since the larvae of sawflies (suborder Sym ...

D300E hauling on a

built over muskeg

Sources

* C. Michael Hogan. 2008
''Black Spruce: Picea mariana'', GlobalTwitcher.com, ed. Nicklas Stromberg, November, 2008
*

References

{{Wetlands Wetlands Types of soil Pedology Landforms Subarctic