The highest mountain in the Northwest is Mount Rainier. Several wilderness areas encompass remote parts of the range, including the North Fork Umatilla Wilderness, the North Fork John Day Wilderness, the Strawberry Mountain Wilderness, and the Monument Rock Wilderness, all of which are in Oregon. Other Ranges: To go to pages for other ranges either click on the map above, or on range names in the hierarchy snapshot below, which show the parent, siblings, and children of the Blue Mountains. These unconstrained streams provide pool habitats that are important to salmonids. The predominant forest cover is ponderosa pine with a shrub or bunchgrass understory; the region lacks a zone of true firs found in other highland areas in the Blue Mountains. All three valleys receive stream flow from the surrounding mountains. It is also contiguous with the World Wildlife Fund's Blue Mountain forests ecoregion. The region covers 1,576 square miles (4,082 km2) along the Deschutes and Crooked rivers in Oregon, in a triangle defined roughly by Warm Springs, Prineville, and Bend. The areas … Riparian areas support white alder, mockorange, western chokecherry, clematis, willows, black cottonwood, and water birch. Though no official boundary exists, the most common conception includes the Canadian province of British Columbia (BC) and the U.S. states of Idaho, Oregon, and Washington. Historically, green fescue and sedges covered high alpine meadows and ridges, particularly in the Wallowas; but, following intense sheep grazing in the early twentieth century, many alpine plant associations reverted to seral or exotic species on rocky subsoil. The Blue Mountains of southeast Washington span 4,000 square miles of land east of Walla Walla, stretching all the way to the Snake River bordering Idaho and south into northeastern Oregon. [2][3], The Blue Mountain Basins ecoregion is characterized by flat to rolling alluvial valleys containing floodplains, fluvial terraces, and scattered buttes in the Wallowa, Grande Ronde, and Baker valleys. [7], The Blues are uplift mountains[8][9][10] and contain some of the oldest rocks in Oregon. A dense and diverse shrub layer grows beneath the relatively open canopy of ponderosa pine and Douglas-fir, which may delay tree regeneration after logging. Blue Mountains oregon Map Pacific northwest Ski areas Map with Washington State oregon Idaho is one of the pictures that are related to the picture before in the collection gallery, uploaded by secretmuseum.net.You can also look for some pictures that related to Map of Oregon by scroll down to collection on below this picture. Perennial streams following fault lines have eroded deep canyons. Elevation varies from 2,600 to 5,000 feet (792 to 1,524 m). Hi – I'm John Chapman, and as of 5-10-2014 I am living in the Pacific Northwest. Add these and more to your travel plan Scegli tra immagini premium su Pacific Northwest Mountains della migliore qualità. Drier slopes feature Douglas-fir, ponderosa pine, Rocky Mountain maple, ninebark, pinegrass, elk sedge, and bigleaf sandwort. Native American tribes originally migrated to the Blue Mountains for hunting and salmon runs. The Blue Mountains Natural Resources Institute (BMNRI) Board of Directors will meet on March 5, 1999, at the Island City Hall, 10605 Island Avenue, La Grande, Oregon. Note: Range borders shown on map are an approximation and are not authoritative. But mention the Blue Mountains to a backpacker from Seattle, Spokane, or Portland… The Blue Mountains are a mountain range in the western United States, located largely in northeastern Oregon and stretching into extreme southeastern Washington. The smallest of the Blue Mountains subregions, the Cold Basins covers 400 square miles (1,036 km2) in several disjunct areas in central and eastern Oregon. Much of the land is grazed by cattle, unlike the Cascades and Northern Rockies ecoregions. Rodents, songbirds, and upland game birds also use the fruits of bitterbrush. These are all quite fragmented and logging of ponderosa pine in particular is an ongoing threat. Mountain Press Publishing Company, Missoula, MT, 2014. Juniper woodlands have expanded markedly into the Blue Mountains, Washington & Oregon Roadside flowers in the Blue Mountains south of Walla Walla, Washington, including Umatilla National Forest in Oregon. The Blue Mountains of northeast Oregon and southeast Washington are composed of a complex mix of ecosystems, habitats, landforms, and economies. The climate has a marine influence, and the region is less arid than the botanically similar High Lava Plains of the Northern Basin and Range ecoregion to the southeast. Lower south-facing slopes support bluebunch wheatgrass and arrowleaf balsamroot. These habitats are vulnerable to logging, livestock grazing, river and fire control schemes and only about 10% of the original forest remains intact. The second largest of the Blue Mountains subregions, the Continental Zone Foothills is located in the easternmost part of the region, covering 3,715 square miles (9,622 km2) in Oregon and 591 square miles (1,531 km2) in Idaho. Frequent wildfires once influenced the open character of the forest. Highly dissected hills, palisades, and colorful ash beds flank the valleys of the John Day and Crooked rivers. Elevation varies from 4,000 to 7,700 feet (1,219 to 2,347 m). [6] The Blue Mountains were so named due to the color of the mountains when seen from a distance. The distribution of desert shrubs varies with soil depth, texture, and elevation. Stakeholder Forum, 27 January 2015, La Grande, OR @M. Hemstrom Winter Storm Warning for Northwest Blue Mountains. Blue Mountains (Pacific Northwest) This article is about the mountain range. The high meadows are often alluvial and have a high water table and silt or clay soils. Bishop, Ellen Morris. Partly cloudy in the evening then becoming mostly cloudy. [2][3], The Deschutes River Valley ecoregion, named for the Deschutes River, which it partially contains, is a broad valley with deeply incised streams. In the mid-1800s, the Blue Mountains were a formidable obstacle to settlers traveling on the Oregon Trail and were often the last mountain range American pioneers had to cross before either reaching southeast Washington near Walla Walla or passing down the Columbia River Gorge to the end of the Oregon Trail in the Willamette Valley near Oregon City. Blue Mountains is northwest of Mill Creek. Eighteen Major Northwest Peaks. The region covers 1,228 square miles (3,181 km2) in Oregon and 285 square miles (738 km2) in Idaho, including parts of the Malheur, Umatilla, and Payette national forests and lower elevations in the Strawberry Mountain, Monument Rock, and North Fork John Day Wildernesses. The Baker Valley, located in the rain shadow of the Elkhorn Mountains, is drier and has areas of alkaline soil. The Blue Mountains, perhaps the most geologically diverse part of Oregon, consist of a series of mountain ranges, rolling uplands, and valleys in the northeastern part of the state and extending into … It is characterized by a dissected, gently-sloping to hilly volcanic plateau and mountain valleys. They run for some 4,500 miles … Other important plants are sagebrush (Artemisia tridentata), juniper (Juniperus occidentalis), Douglas fir (Pseudotsuga menziesii), lodgepole pine (pinus contorta), shrubs, meadows, grasslands and alpine plants. After 22 years in the Pacific Northwest it’s hard for me to imagine living somewhere that doesn’t have snow-capped mountain peaks in my back yard. It occupies the mid-elevation zone between the Subalpine-Alpine Zone and the Continental Zone Foothills, at an elevation of 3,000 to 9,200 feet (914 to 2,804 m). Loess and ash soils over a substrate of basalt retain sufficient moisture to support forest cover at lower elevations than elsewhere in the Blue Mountains. Pacific Northwest Roots - Blue Mountain Koffee quantity. [14][15] The tallest peaks are Sacajawea Peak at 9,843 feet (3,000 m) in the Wallowa Mountains, Rock Creek Butte at 9,106 feet (2,776 m) in the Elkhorn Mountains, and Strawberry Mountain at 9,042 feet (2,756 m) in the Strawberry Range. Mammals that move through the mountain grasslands include elk (including the largest herd in North America at Hells Canyon), bighorn sheep and mule deer. Canals carry river water to irrigated farms on floodplains and terraces growing grass seed, winter wheat, potatoes, alfalfa, mint, onions, carrots for seed, and garlic. Himalayan blackberry, reed canary grass, and sweet clover are introduced species. Add to cart. Like the Cascades, but unlike the Northern Rockies, the Blue Mountains are mostly volcanic in origin. Because of the proximity of the High Cascades, stream density and water availability are high. Blue Mountains Blue Mountains is a summit in Washington and has an elevation of 2733 feet. Elevation varies from 1,200 to 5,500 feet (366 to 1,676 m). Find the perfect Pacific Northwest Mountains stock photos and editorial news pictures from Getty Images. U.S. Route 26 crosses the southern portion of the range, traversing the Blue Mountain Summit and reaching an elevation of 5,098 feet (1,554 m). The region occupies the elevational zone above the unforested Canyons and Dissected Uplands, at an elevation of 4,000 to 6,400 feet (1,219 to 1,951 m). Our dedicated community management … The Pacific Northwest (PNW), sometimes referred to as Cascadia, is a geographic region in western North America bounded by the Pacific Ocean to the west and (loosely) by the Rocky Mountains on the east. Overgrazed areas are dominated by cheatgrass and exotic annuals. Lower north-facing slopes and upper south-facing slopes support Douglas-fir, ponderosa pine, and Idaho fescue. [2][3][4] Large blocks of intact forest remaining include: Eagle Cap Wilderness in the Wallowa–Whitman National Forest, Hells Canyon National Recreation Area, the North Fork John Day Wilderness, Wenaha–Tucannon Wilderness of Umatilla National Forest, Strawberry Mountain Wilderness in Malheur National Forest and the northern part of Ochoco National Forest. Riparian areas support white alder, black hawthorn, ponderosa pine, and juniper. Spent a day and night exploring old logging roads and enjoying some beautiful autumn weather. [2], The Continental Zone Foothills ecoregion consists of foothills, hills, and scattered buttes lying between Oregon's Blue and Wallowa mountains and the northwestern Snake River Plain, at an elevation of 1,800 to 6,600 feet (550 to 2,010 m). Description Reviews (0) Description. Over the last 50 years, increasing temperatures in the Pacific Northwest have caused earlier snowmelt (Stewart et al., 2005, Hamlet et al., 2007), and lower spring snowpack (Mote, 2003, Hamlet et al., 2005, Mote et al., 2005). systems moving east through the Columbia River Gorge. The Wallowa and Grande Ronde valleys have a marine-moderated climate and moisture-retaining loess soils. Named by early settlers for the blue hue of their pine- and fir-lined ridges, they sprawl out southeast of Pendleton, Oregon, over to the Snake River along the border with Idaho, and up into Washington, where they occupy much of the land east of Walla Walla. [2][3][4], The Canyons and Dissected Uplands ecoregion is characterized by deep river canyons and dissected plateaus at an elevation of 1,000 to 5,000 feet (304 to 1,524 m). Scattered buttes occur. [2][4], The Melange ecoregion is characterized by dissected mid-elevation mountains with the complex geology typical of mélange formations. Wet meadows support heather and Parry's rush. The mountains of the ecoregion include the Strawberry Range, Greenhorn, Elkhorn, Aldrich and Maury Mountains in the Blue Mountains, the gentler Ochoco Mountains to the west and the rugged Wallowa Mountains to the east. High gradient streams have boulder and cobble substrates. Birds of the area include bald eagle, northern spotted owl, Lewis's woodpecker, Williamson's sapsucker, red-breasted nuthatch, golden-crowned kinglet and many migratory species, with the riverbanks important habitat for this birdlife. We encourage all customers to follow the laws set forth by their Country, State / Province and local municipalities. The summit lies on Union Pacific's La Grande Subdivision, which runs between La Grande and Hinkle, the latter of which is the site of a major UP yard. Elevation varies from 3,000 to 6,200 feet (914 to 1,990 m). Soils are droughty and high in magnesium, creating a poor medium for plant growth; reforestation problems limit logging. The Pacific Northwest basically extends from southeastern Alaska to Northern California. Mammals that move through the mountain grasslands include Rocky Mountain elk (including the largest herd in North America at Hells Canyon), bighorn sheep and mule deer. Oct 25, 2019 - Photos of mountain scenery, landscapes and culture from the Pacific Northwest of the United States. [13], Geologically, the Blue Mountains are part of the larger rugged Columbia River Plateau, located in the dry area of Oregon and Washington east of the Cascade Range. Blue Mountains oregon Map Pacific northwest Ski areas Map with Washington State oregon Idaho is one of the pictures that are related to the picture before in the collection gallery, uploaded by secretmuseum.net.You can also look for some pictures that related to Map of Oregon by scroll down to collection on below this picture. The tributary canyons feature mockorange, poison-ivy, red-twig dogwood, snowberry, and Rocky Mountain maple. Posted: Sep 10, 2020. [19], During winter months elk will prefer to use "moderately steep south slopes" rather than northern slopes because of the southern slopes being warmer and containing less snow.[21]. sagebrush-grassland during the twentieth century due to a combination of climatic factors, fire suppression, and grazing pressure. Historic tribes of the region included the Walla Walla, Cayuse people and Umatilla, now acting together as the Confederated Tribes of the Umatilla Indian Reservation, located mostly in Umatilla County, Oregon. Riparian areas in the Snake River canyons feature hackberry and bluebunch wheatgrass. Blue Mountains (Pacific Northwest) has been listed as a level-5 vital article in an unknown topic. The herbaceous ground cover features heartleaf arnica, pinegrass, elk sedge, Idaho fescue, Sandberg's bluegrass, and bluebunch wheatgrass. The region covers 1,091 square miles (2,826 km2) in Oregon, 859 square miles (2,225 km2) in Idaho, and smaller areas in Washington, including much of the Hells Canyon National Recreation Area and parts of the Wallowa-Whitman, Payette, and Nez Perce national forests. Add to cart. Grasslands support Bluebunch wheatgrass, Idaho fescue, basin wildrye, Wyoming big sagebrush, and Thurber needlegrass. It is also crossed by the Union Pacific Railroad's mainline between Portland, Oregon and Pocatello, Idaho, which crests the summit at Kamela, Oregon. Select from premium Pacific Northwest Mountains of the highest quality. The Blue Mountains … Potential vegetation is mostly open ponderosa pine, with some Douglas-fir, western juniper, mountain-mahogany, snowberry, mountain big sagebrush, elk sedge, Idaho fescue, and bluebunch wheatgrass. Pacific Northwest. All three valleys are faultbounded grabens or depressions filled with sediments. Along this entire length, is a large mountain range, the Cascade Range, that forms the geographic spine of the Pacific Northwest. USA. Lower, drier sites support ponderosa pine. The climate is influenced by maritime air traveling up the Columbia River Gorge, with higher precipitation than other forested regions in the Blue Mountains. Characteristic species include ponderosa pine, Douglas-fir, grand fir, juniper, antelope bitterbrush, snowberry, mountain-mahogany, mountain big sagebrush, stiff sagebrush, elk sedge, pinegrass, bluebunch wheatgrass, and Idaho fescue. The Blue Mountains are a mountain range in the western United States, located largely in northeastern Oregon and stretching into southeastern Washington. The Blue Mountains. [2], The Maritime-Influenced Zone ecoregion is the portion of the Blue Mountains ecoregion that directly intercepts marine weather 2,575 Posts - See Instagram photos and videos taken at ‘Blue Mountains (Pacific Northwest)’ Habitats within the ecoregion include desert-like shrubland, bluebunch grasslands, pine forest and alpine highlands as well as riverbanks and wetlands. [2], This article is about the ecoregion designated by the EPA. Higher elevations support subalpine fir. Birds of the area include bald eagle, northern spotted owl, Lewis's woodpecker, Williamson's sapsucker, red-breasted nuthatch, golden-crowned kinglet and many migratory species, with the riverbanks important habitat for this birdlife. The Wallowa and Grande Ronde valleys features grassland containing bluebunch wheatgrass and Idaho fescue. Elevation varies from 3,000 to 6,000 feet (914 to 1,829 m). The Columbia River delineates much of Oregon’s northern boundary similar to Washington, though the Snake River … The region provides important wildlife habitat. The sagebrush steppe features mountain-mahogany, bitterbrush, bluebunch wheatgrass, mountain big sagebrush, Idaho fescue, Wyoming big sagebrush, Sandberg bluegrass, and, on schist, Nevada greasebush. The Blue Mountains ecoregion is a Level III ecoregion designated by the United States Environmental Protection Agency (EPA) in the Pacific Northwest, mainly in the state of Oregon, with small areas over the state border in Idaho and southeastern Washington. Blue Mountains Map - Oregon - Mapcarta North … Even the jagged Wallowa Mountains are well known. The steep terrain limits human activities. Very open forests of subalpine fir, Engelmann spruce, and whitebark pine tolerate the cold soils, deep snowpack, and extremely short growing season near timberline. Moisture retaining loess and ash soils support Douglas-fir, larch, and grand fir on relatively level benches and Douglas-fir in unstable colluvial soils on steep canyon slopes. Blue Mountains near Walla Walla.. Blue Mountains location map. Pacific mountain system, series of mountain ranges that stretches along the Pacific Ocean coast of North America from northern British Columbia to northwestern Mexico. Elevation varies from 2,000 to 4,000 feet (610 to 1,219 m), with buttes as high as 5,300 feet (1,615 m). Pacific Northwest Roots - Blue Mountain Koffee quantity. Posts about mountains written by chapster. The region covers 1,093 square miles (2,831 km2) in Oregon, 535 square miles (1,386 km2) in Idaho, and smaller areas in Washington, including parts of the Wallowa-Whitman, Nez Perce, and Payette National Forests, the Wenaha–Tucannon Wilderness, and the Hells Canyon National Recreation Area. The depth of the canyons and the exposed metamorphic rocks result in stony soils on canyon slopes that retain little moisture. [2], The disjunct Mesic Forest Zone ecoregion is characterized by a dissected, volcanic plateau and mid-elevation mountains containing the highest forested areas in the Blue Mountains, western Wallowa Mountains, and western Seven Devils Mountains. In the northern part, the basalt cap is absent, and the terrain is more rolling and dissected. Rivers include the Grande Ronde, Powder Rivers and Malheur Rivers, all tributaries of the Snake and the John Day and Umatilla Rivers, tributaries of the Columbia.[1]. The region includes significant landholdings by the United States Forest Service and the Bureau of Land Management. [20] In 2018, Washington State proposed an updated elk management plan intended to improve the health of elk populations and habitats, reduce human conflict and agricultural damage, and managing elk populations for recreational, educational, scientific, and ceremonial purposes. The Blue Mountains are a mountain range in the western United States, located largely in northeastern Oregon and stretching into southeastern Washington.The range has an area of 4,060 square miles (10,500 km 2), stretching east and southeast of Pendleton, Oregon, to the Snake River along the Oregon-Idaho border. [2][3], The Canyons and Dissected Highlands ecoregion is characterized by steeply sloping, upper river canyons and dissected plateaus in the rain shadow of the mountains. [2][3][4], The Subalpine-Alpine Zone ecoregion includes high elevation, glaciated mountains with arêtes, cirques, and tarns. We encourage all customers to follow the laws set forth by their Country, State / Province and local municipalities. Blue Mountains oregon Map oregon Hot Springs Map oregon Discovery Oregon is a allow in in the Pacific Northwest region on the West Coast of the joined States. From Mapcarta, the free map. The range has an area of about 15,000 square miles (38,850 km2), stretching east and southeast of Pendleton, Oregon, to the Snake River along the Oregon-Idaho border. SKU: PANW0063 Categories: Pacific North West Roots, Regular Seeds Tags: Blue Dream Bx1, Kayas Koffee. This article is of interest to the … Pacific Northwest Wildfire Resources. The Blue Mountain Region Long-Term Recovery Group (BMRLTRG) was organized in the wake of this flooding and models a nationwide best practice for recovering from disasters. Elevation varies from 3,500 to 7,500 feet (1,067 to 2,286 m). [11][12] Rocks as old as 400 million years protrude through surrounding Columbia River Basalt flows of 52 million to 6 million years ago. Placer mining for gold altered the structure of many stream channels and left extensive tailings piles in riparian areas. Rainier is … They are made up of several mountain ranges, from the Ochoco Mountains and Maury Mountains in the west near Prineville, Oregon, through the Greenhorn Mountains, the Aldrich Mountains, and the Strawberry Range, to the Elkhorn Mountains and Wallowa Mountains on the east and the Snake River in Hells Canyon. The Blue Mountains, or simply “the Blues,” occupy more than 4,000 square miles of eastern Oregon and Washington. The region covers 526 square miles (1,362 km2) in Oregon and 251 square miles (650 km2) in Idaho, containing parts of the Wallowa-Whitman, Nez Perce, and Payette national forests. Coordinates: .mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct{display:none}.mw-parser-output .longitude,.mw-parser-output .latitude{white-space:nowrap}45°30′00″N 118°00′05″W / 45.50000°N 118.00139°W / 45.50000; -118.00139, This article is about the mountain range. "Roadside Geology of Oregon, Second Edition." [18] The Natives used to purposefully burn small parts of the forest in order to create pastures to attract game for hunting.[7]. Click Here for a Full Screen Map. Trova le migliori illustrazioni stock di Pacific Northwest Mountains su Getty Images. Pacific mountain system, series of mountain ranges that stretches along the Pacific Ocean coast of North America from northern British Columbia (Canada) to northwestern Mexico. Much of the range is included in the Malheur National Forest, Umatilla National Forest, and Wallowa–Whitman National Forest. A chance of … Basal leaves thick, narrow, oblong, entire, 3–10 in. Many of its perennial streams flow south to end in the alkaline basins of the High Desert Wetlands of the Northern Basin and Range ecoregion. The Blue Mountains in Washington are home to one of 10 identified elk herds in the state, with a population of approximately 4,500 Rocky Mountain elk as of 2018 across the region. The Blue Mountains, or simply “the Blues,” occupy more than 4,000 square miles of eastern Oregon and Washington. The Blue Mountains are a mountain range in the western United States, located largely in northeastern Oregon and stretching into southeastern Washington.The range has an area of 4,060 square miles (10,500 km 2), stretching east and southeast of Pendleton, Oregon, to the Snake River along the Oregon-Idaho border. Processes in the Blue Mountains Ecoregion of the Pacific Northwest – a MtnSEON Working Group Mary Rowland, USDA Forest Service, PNW Research Station Blue Mts. North America. The region experiences seasonal temperature extremes and low annual precipitation. The region covers 2,226 square miles (5,765 km2) in Oregon, 47 square miles (122 km2) in Idaho, and small areas in Washington, including parts of the Malheur, Ochoco, Umatilla, and Wallowa-Whitman national forests, and significant portions of the Mill Creek, Bridge Creek, Black Canyon, Monument Rock, North Fork John Day, North Fork Umatilla, and Eagle Cap wildernesses. The range is currently traversed by Interstate 84, which crosses the crest of the range at a 4,193 feet (1,278 m) summit, from south-southeast to north-northwest between La Grande and Pendleton. It is also contiguous with the World Wildlife Fund's Blue Mountain forests ecoregion. Historically, frequent low intensity wildfires reduced fuel loading in forests of widely spaced old-growth ponderosa pine. Penstemon pennellianus Blue Mountain Penstemon. The ecoregion is named for the Blue Mountains and contains a complex of basins and mountain ranges that, at average 2100-2900m, are lower and more open than the neighboring Cascades and Northern Rocky Mountains but do include some steep landscape of which Hells Canyon at 1,660m is North America's deepest gorge. Native fish include Chinook Salmon, Steelhead, Redband Trout, Coho Salmon, Bull Trout, and Pacific Lamprey. Several consecutive years of drought, epidemic … Forests are dominated by Douglas-fir, ponderosa pine, and lodgepole pine, with subalpine fir, western larch, and grand fir; elsewhere, juniper steppe woodlands, shrublands, and grasslands are found. Learn how and when to remove this template message, National Historic Oregon Trail Interpretive Center, Confederated Tribes of the Umatilla Indian Reservation, Eleven years in the Rocky Mountains and a life on the frontier, https://www.summitpost.org/sacajawea-peak/151103, https://www.oregonencyclopedia.org/articles/blue_mountains/#.XqIlK2hKjIU, "Strange but True: The Largest Organism on Earth Is a Fungus", Blue Mountains | mountains, Oregon-Washington, United States | Britannica.com, The Oregon Companion: An Historical Gazetteer of the Useful, the Curious ... - Richard H. Engeman - Google Books, The Columbia River Basalt Group | Continental flood basalt flows | cbgwma.org, https://www.oregongeology.org/pubs/ims/ims-028/unit01.htm, https://www.oregongeology.org/pubs/ims/ims-028/unit05.htm, https://www.summitpost.org/wallowa-mountains/171205, https://www.summitpost.org/blue-mountains-or/170889, "Washington State Elk Herd Plan: Blue Mountains Elk Herd | Washington Department of Fish & Wildlife", https://en.wikipedia.org/w/index.php?title=Blue_Mountains_(Pacific_Northwest)&oldid=992199088, Articles needing additional references from December 2007, All articles needing additional references, Wikidata value to be checked for Infobox mountain, Creative Commons Attribution-ShareAlike License, This page was last edited on 4 December 2020, at 01:02. Valley features sagebrush steppe composed of Wyoming big sagebrush, and sedimentary rocks ( 4,027 km2 in! Background, seen from the Pacific Northwest of North America Mesic Forest Zone that exists at elevations! 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