Cline Buttes
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The Cline Buttes are mountains with
volcanic A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates a ...
origins that form three dome-shaped peaks located in
Deschutes County Deschutes County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 198,253. The county seat is Bend. The county was created in 1916 out of part of Crook County and was named for the Deschutes ...
in central
Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...
. They are some of the eastern foothills of the
Cascade Range The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as the North Cascades, ...
. Situated on land administered by the
Bureau of Land Management The Bureau of Land Management (BLM) is an agency within the United States Department of the Interior responsible for administering federal lands. Headquartered in Washington DC, and with oversight over , it governs one eighth of the country's la ...
, the buttes are flanked on the east and west sides by two separate sections of the
Eagle Crest Resort Eagle Crest Resort is a destination resort complex in the U.S. state of Oregon. The resort has a large hotel, a conference center, three golf courses, and three major housing developments each with multiple subdivisions. The resort is located we ...
. On the highest summit, there is a
Federal Aviation Administration The Federal Aviation Administration (FAA) is the largest transportation agency of the U.S. government and regulates all aspects of civil aviation in the country as well as over surrounding international waters. Its powers include air traffic m ...
site with an aircraft navigation beacon. The mountains have several hiking trails as well as a number of popular
mountain bike A mountain bike (MTB) or mountain bicycle is a bicycle designed for off-road cycling. Mountain bikes share some similarities with other bicycles, but incorporate features designed to enhance durability and performance in rough terrain, which ...
routes.


Geography and geology

The Cline Buttes are composed of three rounded peaks. They are some of the easternmost foothills of the Cascade mountain range, located near the northwest corner of Oregon's high desert country. The mountains are in Deschutes County, approximately west of Redmond. Of the three crests, the southern peak is the highest. Its summit is above sea level. The Cline Buttes are a stand-alone mountain with the nearest higher peak to the south. Oregon topographic map
, United States Geological Survey, United States Department of Interior, Reston, Virginia; displayed via ACME mapper, ''www.acme.com'', 17 November 2017.
Cline Buttes feature gentle slopesMcDannel, Angela K.
"Geology of the southernmost Deschutes basin, Tumalo quadrangle, Deschutes County, Oregon"
, Oregon State University, 1989, p. 3.
with highly conical shaped peaks.McDannel, Angela K.
"Geology of the southernmost Deschutes basin, Tumalo quadrangle, Deschutes County, Oregon"
, Oregon State University, 1989, p. 14-15, 23.
The Cline Buttes form a
silicic Silicic is an adjective to describe magma or igneous rock rich in silica. The amount of silica that constitutes a silicic rock is usually defined as at least 63 percent. Granite and rhyolite are the most common silicic rocks. Silicic is the group ...
volcanic center, active before the emplacement of the Deschutes Formation, a late
Miocene The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recen ...
to early
Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58lava flow Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a moon onto its surface. Lava may be erupted at a volcano or through a fracture in the crust, on land or und ...
s cover a collective area of approximately , and were created as part of the
John Day Formation The John Day Formation is a series of rock strata exposed in the Picture Gorge district of the John Day River basin and elsewhere in north-central Oregon in the United States. The Picture Gorge exposure lies east of the Blue Mountain uplift, whi ...
during the late
Oligocene The Oligocene ( ) is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that define the epoch are well identified but the ...
or early Miocene epoch, approximately twenty-five million years ago. The primary rock that makes up the mountain is
rhyolite Rhyolite ( ) is the most silica-rich of volcanic rocks. It is generally glassy or fine-grained (aphanitic) in texture, but may be porphyritic, containing larger mineral crystals (phenocrysts) in an otherwise fine-grained groundmass. The mineral ...
with some
basalt Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial ...
also present. Most of the rhyolite is white or light-gray. It was formed when volcanic
magma Magma () is the molten or semi-molten natural material from which all igneous rocks are formed. Magma is found beneath the surface of the Earth, and evidence of magmatism has also been discovered on other terrestrial planets and some natural sa ...
cooled below the earth's surface before erupting onto the surface. There are also some
obsidian Obsidian () is a naturally occurring volcanic glass formed when lava extrusive rock, extruded from a volcano cools rapidly with minimal crystal growth. It is an igneous rock. Obsidian is produced from felsic lava, rich in the lighter elements s ...
flow-bands exposed in a rock quarry on the northeast flank of the mountains. The Cline Buttes have been significantly eroded over time, leaving a rounded dome shape with three separate crests. They are now covered with of sandy loam soil in most areas with rhyolite and basalt outcropping on the steeper slopes.Peterson, Norman V., et al
Geology and Mineral Resources of Deschutes County, Oregon
(Bulletin 89), Oregon Department of Geology and Mineral Industries, Portland, Oregon 1976, p. 5, 8–9, 11.
Sherrod, David R., Edward M. Taylor, et al
"Rhyolite of Cline Buttes (Miocene)"
, ''Geologic Map of the Bend 30 × 60 Minute Quadrangle, Central Oregon'', United States Geological Survey, United States Department of the Interior, Seattle, Washington, 2004, p. 28.
The rhyolite lava flow deposits at Cline Buttes show a roughly
porphyritic Porphyritic is an adjective used in geology to describe igneous rocks with a distinct difference in the size of mineral crystals, with the larger crystals known as phenocrysts. Both extrusive and intrusive rocks can be porphyritic, meaning all ...
texture, with
oligoclase Oligoclase is a rock-forming mineral belonging to the plagioclase feldspars. In chemical composition and in its crystallographic and physical characters it is intermediate between albite ( Na Al Si3 O8) and anorthite ( CaAl2Si2O8). The albite:an ...
phenocrysts 300px, feldspathic phenocrysts. This granite, from the Switzerland">Swiss side of the Mont Blanc massif, has large white plagioclase phenocrysts, triclinic minerals that give trapezoid shapes when cut through). 1 euro coins, 1 euro coin (diameter ...
making up between 1 and 2 percent of the minerals. These flows have been devitrified and show a normal-polarity magnetization. Cline Buttes volcanoes also produced
rhyodacite Rhyodacite is a volcanic rock intermediate in composition between dacite and rhyolite. It is the extrusive equivalent of those plutonic rocks that are intermediate in composition between monzogranite and granodiorite. Rhyodacites form from rapid ...
, which varies in color from light gray to red-brown and are similarly sparsely porphyritic. The basalt lava flows produced a now-
weathered ''Weathered'' is the third studio album by American rock band Creed, released on November 20, 2001. It was the last Creed album to be released until '' Full Circle'' came out in October 2009, with Creed disbanding in June 2004. It is the only Cr ...
hill on the western flank of the Buttes, which is not topped by rhyodacite and therefore likely formed after that lava erupted, despite having a lower relative elevation.McDannel, Angela K.,
"Geology of the southernmost Deschutes basin, Tumalo quadrangle, Deschutes County, Oregon"
, Oregon State University, 1989, p. 16.


Environment and ecology

To the west of the Cline Buttes are woodlands covered with
western juniper ''Juniperus occidentalis'', known as the western juniper, is a shrub or tree native to the Western United States, growing in mountains at altitudes of and rarely down to . It is listed as Least Concern on the IUCN Red List because it is a widesp ...
transitioning to
ponderosa pine ''Pinus ponderosa'', commonly known as the ponderosa pine, bull pine, blackjack pine, western yellow-pine, or filipinus pine is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is the ...
,
lodgepole 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, ...
, and
fir Firs (''Abies'') are a genus of 48–56 species of evergreen coniferous trees in the family (biology), family Pinaceae. They are found on mountains throughout much of North America, North and Central America, Europe, Asia, and North Africa. The ...
forest. The forest extends to the timberline on the central Cascade peaks, approximately away. The area south and east of the mountain is drier. It is typical of Oregon's high desert country dominated by juniper and
sagebrush Sagebrush is the common name of several woody and herbaceous species of plants in the genus ''Artemisia''. The best known sagebrush is the shrub ''Artemisia tridentata''. Sagebrushes are native to the North American west. Following is an alph ...
.Witty, Jim
"Cline Butte", ''The Bulletin'', Bend, Oregon, 17 March 2006.
/ref>Morical, Mark
"Biking the Buttes"
, ''The Bulletin'', Bend Oregon, 8 April 2015.
The slopes of the Cline Buttes are covered by an old-growth juniper forest with an
understory In forestry and ecology, understory (American English), or understorey (Commonwealth English), also known as underbrush or undergrowth, includes plant life growing beneath the forest canopy without penetrating it to any great extent, but abov ...
dominated by
low sagebrush ''Artemisia arbuscula'' is a North American species of sagebrush (plant), sagebrush known by the common names little sagebrush, low sagebrush, or black sagebrush. It is native to the western United States from Washington (U.S. state), Washington, ...
.Aurand, Anne
"Plenty of desert out our back door"
, ''The Bulletin'', Bend Oregon, 20 February 2013.
Richard, Terry

, ''Oregonian'', Portland, Oregon, 7 May 2014.
Rabbitbrush Rabbitbrush is a common name for shrubs, principally of the western United States, in three related genera of the family Asteraceae: * '' Chrysothamnus'' — about seven species in the United States, including Greene's rabbitbrush * ''Ericame ...
is also a common understory shrub on the slopes. Low groundcover plants includes Granite Gilia, rough eyelash, Longleaf hawksbeard, and
bunch grass Tussock grasses or bunch grasses are a group of grass species in the family Poaceae. They usually grow as singular plants in clumps, tufts, hummocks, or bunches, rather than forming a sod or lawn, in meadows, grasslands, and prairies. As perennial ...
. The Cline Buttes and the surrounding area host a wide variety of wildlife. Larger mammals found in the area include
black-tailed deer Two forms of black-tailed deer or blacktail deer that occupy coastal woodlands in the Pacific Northwest of North America are subspecies of the mule deer (''Odocoileus hemionus''). They have sometimes been treated as a species, but virtually all r ...
,
elk The elk (''Cervus canadensis''), also known as the wapiti, is one of the largest species within the deer family, Cervidae, and one of the largest terrestrial mammals in its native range of North America and Central and East Asia. The common ...
,
coyote The coyote (''Canis latrans'') is a species of canis, canine native to North America. It is smaller than its close relative, the wolf, and slightly smaller than the closely related eastern wolf and red wolf. It fills much of the same ecologica ...
s,
black bear Black bear or Blackbear may refer to: Animals * American black bear (''Ursus americanus''), a North American bear species * Asian black bear (''Ursus thibetanus''), an Asian bear species Music * Black Bear (band), a Canadian First Nations group ...
,
bobcat The bobcat (''Lynx rufus''), also known as the red lynx, is a medium-sized cat native to North America. It ranges from southern Canada through most of the contiguous United States to Oaxaca in Mexico. It is listed as Least Concern on the IUC ...
s, and
cougar The cougar (''Puma concolor'') is a large Felidae, cat native to the Americas. Its Species distribution, range spans from the Canadian Yukon to the southern Andes in South America and is the most widespread of any large wild terrestrial mamm ...
s. Smaller mammals include
American badger The American badger (''Taxidea taxus'') is a North American badger similar in appearance to the European badger, although not closely related. It is found in the western, central, and northeastern United States, northern Mexico, and south-centr ...
s,
striped skunk The striped skunk (''Mephitis mephitis'') is a skunk of the genus '' Mephitis'' that occurs across much of North America, including southern Canada, the United States, and northern Mexico. It is currently listed as least concern by the IUCN on ac ...
s,
black-tailed jackrabbit The black-tailed jackrabbit (''Lepus californicus''), also known as the American desert hare, is a common hare of the western United States and Mexico, where it is found at elevations from sea level up to . Reaching a length around , and a ...
s,
white-tailed jackrabbit The white-tailed jackrabbit (''Lepus townsendii''), also known as the prairie hare and the white jack, is a species of hare found in western North America. Like all hares and rabbits, it is a member of the family Leporidae of order Lagomorpha ...
s,
mountain cottontail The mountain cottontail or Nuttall's cottontail (''Sylvilagus nuttallii'') is a species of mammal in the family Leporidae. It is found in Canada and the United States. Description The mountain cottontail is a small rabbit but its size is rel ...
s,
Belding's ground squirrel Belding's ground squirrel (''Urocitellus beldingi''), also called pot gut, sage rat or picket-pin, is a squirrel that lives on mountains in the western United States. In California, it often is found at in meadows between Lake Tahoe and Kings C ...
s,
golden-mantled ground squirrel The golden-mantled ground squirrel (''Callospermophilus lateralis'') is a ground squirrel native to western North America. It is distributed in the Rocky Mountains of British Columbia and Alberta, and through much of the western United States. ...
s, and
least chipmunk The least chipmunk (''Neotamias minimus'') is the smallest species of chipmunk and the most widespread in North America. Description It is the smallest species of chipmunk, measuring about in total length with a weight of . The body is gray to ...
s."Wildlife list for Cline Falls watershed in the Upper Deschutes Subbasin"
, ''Oregon Wildlife Explorer'', National Resources Digital Library, Oregon State University Libraries, Oregon State University, Corvallis, Oregon, accessed 18 November 2017.
Anderson, Jim
"Water and Land"
, "The Nugget", Sister, Oregon, 6 January 2016, p. 2.
Birds common to the Cline Buttes area include
mountain chickadee The mountain chickadee (''Poecile gambeli'') is a small songbird, a passerine bird in the tit family Paridae. Taxonomy The specific name honors naturalist William Gambel. The mountain chickadee was formerly placed in the genus ''Parus'' with ...
,
American goldfinch The American goldfinch (''Spinus tristis'') is a small North American bird in the finch family. It is migratory, ranging from mid-Alberta to North Carolina during the breeding season, and from just south of the Canada–United States border to ...
,
lesser goldfinch The lesser goldfinch (''Spinus psaltria'') is a very small songbird of the Americas. Together with its relatives the American goldfinch and Lawrence's goldfinch, it forms the New World goldfinch clade in the genus '' Spinus''. As is the case fo ...
,
Black-headed grosbeak The black-headed grosbeak (''Pheucticus melanocephalus'') is a medium-sized, seed-eating bird in the family Cardinalidae. It is sometimes considered conspecific with the rose-breasted grosbeak (''P. ludovicianus'') with which it hybridizes on ...
,
mountain bluebird The mountain bluebird (''Sialia currucoides'') is a small migratory thrush that is found in mountainous districts of western North America. It has a light underbelly and black eyes. Adult males have thin bills and are bright turquoise-blue and s ...
,
Steller's jay Steller's jay (''Cyanocitta stelleri'') is a bird native to western North America and the mountains of Central America, closely related to the blue jay found in eastern North America. It is also known as the long-crested jay, mountain jay, and pin ...
,
northern flickers 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 speci ...
, and
black-billed magpie The black-billed magpie (''Pica hudsonia''), also known as the American magpie, is a bird in the corvid family found in the western half of North America. It is black and white, with black areas on the wings and tail showing iridescent hints o ...
. Birds of prey found in the area include
golden eagle The golden eagle (''Aquila chrysaetos'') is a bird of prey living in the Northern Hemisphere. It is the most widely distributed species of eagle. Like all eagles, it belongs to the family Accipitridae. They are one of the best-known bird of p ...
s,
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 ...
s,
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, and
prairie falcon The prairie falcon (''Falco mexicanus'') is a medium-large sized falcon of western North America. It is about the size of a peregrine falcon or a crow, with an average length of 40 cm (16 in), wingspan of approximately 1 meter (40&nb ...
s. While prairie falcons are uncommon in most parts of central Oregon, the area around the Cline Buttes has a native breeding population. To protect these birds, some areas around the Cline Buttes are closed to humans activities several months each year.


Human use


History

The Cline Buttes were named in honor of Doctor Cass A. Cline (1850–1926), a pioneer dentist and early land developer in central Oregon. A nearby
waterfall A waterfall is a point in a river or stream where water flows over a vertical drop or a series of steep drops. Waterfalls also occur where meltwater drops over the edge of a tabular iceberg or ice shelf. Waterfalls can be formed in several wa ...
on the
Deschutes River Deschutes River may refer to: *Deschutes River (Oregon) The Deschutes River in central Oregon is a major tributary of the Columbia River. The river provides much of the drainage on the eastern side of the Cascade Range in Oregon, gathering many ...
, northeast of the buttes, is also named after the dentist. Cline immigrated to Oregon in 1853, settling in the
Willamette Valley The Willamette Valley ( ) is a long valley in Oregon, in the Pacific Northwest region of the United States. The Willamette River flows the entire length of the valley and is surrounded by mountains on three sides: the Cascade Range to the east, ...
. He moved to central Oregon in 1871. In 1886, he filed a homestead land claim along the Deschutes River, near the buttes and falls that now bear his name.McArthur, Lewis A. and Lewis L. McArthur, "Cline Falls", ''Oregon Geographic Names'' (Seventh Edition), Oregon Historical Society Press, Portland, Oregon, 2003, p. 210.Brogan, Phil F., ''East of the Cascades'', Binfords and Mort, Portland, Oregon, 1965, p. 148 Later, Cline attempted to establish a town along the west bank of the Deschutes River, near the foot of the Cline Buttes. At its peak, the town of Cline Falls had a post office, a school, two stores, two hotels, a newspaper, a power plant, and 500 residential lots for sale. However, the community eventually failed when the first railroad route through the area was built on the opposite side of the river, through the neighboring town of Redmond. In 1904, gold was discovered on the Cline Buttes by Otto Retzlaff and C. P. Becker. The first gold ore was found in a ledge outcrop on the south flank of the mountain.Berry, Ralph, "Oregon's Gold Rush", ''High Desert Voices'', High Desert Museum, Bend, Oregon, February 2017, pp. 1–2. More than 50 mining claims were quickly filed. However, when the ore was assayed it was found to be uneconomical to extract, so mining operations never got underway. In 1985, development of Eagle Crest Resort began along the Deschutes River, east of the Cline Buttes. The original development was on the east side of the Cline Falls Highway. In 1996, Eagle Crest began selling residential lots west of the Cline Falls Highway, between the highway and the eastern base of the Cline Buttes. This development was completed in 1993. Later, a third phase of Eagle Crest housing was developed along the northwestern base of the Cline Buttes. This area is separated from the Eagle Crest's second development by approximately one mile of Bureau of Land Management property. There is a paved easement road that connects the two areas, running along the northern base of the mountain. Today, the Bureau of Land Management administers the Cline Buttes and much of the land around the mountain. The bureau has established Cline Buttes Recreation Area, a area that is being developed for a wide range of recreational uses.''Cline Buttes Recreation Area''
(map), Prineville District, Bureau of Land Management, United States Department of Interior, Prineville, Oregon, accessed 23 August 2017.
A service road runs up the south side of the mountain and then along the upper west flank to the main summit. The road supports a Federal Aviation Administration facility located at the summit. The facility houses a radio beacon used for aircraft navigation. There is also a road running along the east flank of the mountain. It leads to a rock quarry located on the northeast side of the mountain.


Recreation

In the summer, recreation opportunities in the Cline Buttes area include
hiking Hiking is a long, vigorous walk, usually on trails or footpaths in the countryside. Walking for pleasure developed in Europe during the eighteenth century.AMATO, JOSEPH A. "Mind over Foot: Romantic Walking and Rambling." In ''On Foot: A Histor ...
,
horseback riding Equestrianism (from Latin , , , 'horseman', 'horse'), commonly known as horse riding (Commonwealth English) or horseback riding (American English), includes the disciplines of riding, driving, and vaulting. This broad description includes the ...
,
mountain biking Mountain biking is a sport of riding bicycles off-road, often over rough terrain, usually using specially designed mountain bikes. Mountain bikes share similarities with other bikes but incorporate features designed to enhance durability and pe ...
,
bird watching Birdwatching, or birding, is the observing of birds, either as a recreational activity or as a form of citizen science. A birdwatcher may observe by using their naked eye, by using a visual enhancement device like binoculars or a telescope, ...
, and scenic viewing. There are separate mountain trails for hikers, mountain bikes, and horseback riding. During the winter, the area is usually available for some recreation activities since snow accumulation on and around the mountain is not excessive in most years. The Cline Buttes are particularly well known for their mountain bike trails. Several of the bike trails are narrow single-track paths that follow the slope around the buttes to vista points. There are also two downhill trails that start at the top of the highest peak. These are extremely challenging routes with very steep rocky sections. Those trails are recommended for expert bikers only. Many of the lower trails are narrow with occasional downhill jumps, suitable for bikers with intermediate-level skills."Cline Butte #1 Downhill"
, ''MTB Project'', REI Co-op, Sumner, Washington, accessed 1 December 2017.
From the summit of the Cline Buttes, visitors have an excellent view of Cascade peaks to the west as well as the high desert country of Deschutes and
Crook Crook is another name for criminal. Crook or Crooks may also refer to: Places * Crook, County Durham, England, a town * Crook, Cumbria, England, village and civil parish * Crook Hill, Derbyshire, England * Crook, Colorado, United States, a ...
counties to the east. Visitors can see as far north as
Mount Hood Mount Hood is a potentially active stratovolcano in the Cascade Volcanic Arc. It was formed by a subduction zone on the Pacific coast and rests in the Pacific Northwest region of the United States. It is located about east-southeast of Portlan ...
and as far south as
Mount Bachelor Mount Bachelor, formerly named Bachelor Butte, is a dormant stratovolcano atop a shield volcano in the Cascade Volcanic Arc and the Cascade Range of central Oregon. Named Mount Bachelor because it stands apart from the nearby Three Sisters, it ...
from the Cline Buttes' highest summit. To the west are the central peaks of the Cascade Range, dominated by the Three Sisters. To the northeast lies
Smith Rock State Park Smith Rock State Park is a state park located in central Oregon's High Desert near the communities of Redmond and Terrebonne. The day-use area of the park is open daily from dawn to dusk. The park also has a camping area as well that accommodat ...
, and farther to the east are the Powell Buttes and the
Ochoco Mountains The Ochoco Mountains are a mountain range in central Oregon in the United States, located at the western end of the Blue Mountains. They were formed when Permian, Triassic, and Jurassic rocks were slowly uplifted by volcanic eruptions to form t ...
. From the summit, the views to the south and southeast are of the lower sections of the Cline Buttes Recreation Area located on the Matson Plateau west of the Deschutes River with Pilot Butte and
Paulina Peak Paulina Peak is a summit in Deschutes County, Oregon, United States. Formed by the Newberry Volcano, it is part of Newberry National Volcanic Monument Newberry National Volcanic Monument was designated on November 5, 1990, to protect the area ...
in the distance.


References


External links


Cline Buttes Recreation Area map
{{Volcanoes of Oregon, state=collapsed Buttes of Oregon Cascade Range Mountains of Deschutes County, Oregon Mountains of Oregon Volcanoes of Deschutes County, Oregon Volcanoes of Oregon Volcanoes of the United States Lava domes Cascade Volcanoes