The Blue Mountains

The Blue Mountains are a mountain range located largely in northeastern Oregon and stretching into southeastern Washington in the United States. The range has an area of 4062.5 square miles (10521.82 square kilometers), stretching east and southeast of Pendleton, Oregon to the Snake River along the Oregon-Idaho border. Geologically, the range is a part of the larger rugged Columbia Plateau, located in the dry area of Oregon east of the Cascade Range. The highest peaks in the range include Strawberry Mountain (9038 ft/2739 m) and Mount Ireland (8321 ft/2522 m). The nearby Wallowa Mountains, east of the main range near the Snake River, are sometimes included as a subrange of the Blue Mountains. Blue Mountains (Oregon) © 2004 Matthew Trump File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Blue Mountains (Oregon) © 2004 Matthew Trump File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... The most general definition of a mountain range is a group of mountains bordered by lowlands. ... State nickname: Beaver State Other U.S. States Capital Salem Largest city Portland Governor Ted Kulongoski (D) Senators Ron Wyden (D) Gordon Smith (R) Official language(s) None Area 255,026 km² (9th)  - Land 248,849 km²  - Water 6,177 km² (2. ... State nickname: The Evergreen State Other U.S. States Capital Olympia Largest city Seattle Governor Christine Gregoire (D) Senators Patty Murray (D) Maria Cantwell (D) Official language(s) None Area 184,824 km² (18th)  - Land 172,587 km²  - Water 12,237 km² (6. ... Pendleton is a city located in Umatilla County, Oregon. ... This article is about the Snake River in the northwestern United States. ... State nickname: Gem State Other U.S. States Capital Boise Largest city Boise Governor Dirk Kempthorne (R) Senators Larry Craig (R) Mike Crapo (R) Official language(s) none Area 216,632 km² (14th)  - Land 214,499 km²  - Water 2,133 km² (0. ... Geology (from Greek γη- (ge-, the earth) and λογος (logos, word, reason)) is the science and study of the Earth, its composition, structure, physical properties, history, and the processes that shape it. ... The Washington towns of Spokane, Vantage, Yakima and Pasco, and the Oregon town of Pendleton, lie on the Columbia River Plateau. ... Mount Adams in Washington The Cascade Range is a mountainous region famous for its chain of tall volcanoes called the High Cascades that run north-south along the west coast of North America from British Columbia to the Shasta Cascade area of northern California. ... The Wallowa Mountains are a mountain range located in the Columbia Plateau of northeastern Oregon in the United States. ...

In the middle 19th century, the Blue Mountains were a formidable obstacle on the Oregon Trail and was often the last mountain range American pioneers had to cross before reaching either southeast Washington near Walla Walla or passing down the Columbia River Gorge to end of the Oregon Trail in the Willamette Valley near Oregon City. The range today is traversed by Interstate 84, which crosses the crest of the range from northwest to southeast between Pendleton and LaGrande. The community of Baker City sits along the southeastern flank of the range. U.S. Highway 26 crosses the southern portion of the range, reaching a summit of 5098 ft (1545 m) at Blue Mountain Pass. Alternative meaning: Nineteenth Century (periodical) (18th century — 19th century — 20th century — more centuries) As a means of recording the passage of time, the 19th century was that century which lasted from 1801-1900 in the sense of the Gregorian calendar. ... The route of the Oregon Trail is shown in red in the western United States Map from The Ox Team or the Old Oregon Trail 1852-1906 by Ezra Meeker. ... Walla Walla is the both the county seat of Walla Walla County, Washington, USA, and the countys largest city. ... The Columbia River Gorge is a spectacular canyon of the Columbia River in the Pacific Northwest of the United States. ... The Willamette Valley The Willamette Valley The Willamette Valley is the region in northwest Oregon in the United States that surrounds the Willamette River as it proceeds northward from its emergence from mountains near Eugene to its confluence with the Columbia River. ... Municipal Elevator in Oregon City Oregon City is the first city in the United States incorporated west of the Rockies. ... Columbia River Gorge and I-84 as seen from Crown Point, Oregon Interstate 84 runs from an intersection with Interstate 5 at Portland, Oregon to an intersection with Interstate 80 at Echo, Utah—roughly the same route as the Oregon Trail. ... La Grande is a city located in Union County, Oregon. ... Baker City is a city and the county seat of Baker County, Oregon. ... United States Highway 26 is an east-west United States highway. ...

Much of the range is included in either the Umatilla National Forest and Malheur National Forest. Several wilderness areas encompass remote parts of the range, including the Umatilla Wilderness Area, the North Fork John Day Wilderness Area, Strawberry Mountain Wilderness Area, Monument Rock Wilderness Area, all of which are in Oregon. The Wehana-Tucannon Wilderness Area sits astride the Oregon-Washington border. The Malheur National Forest contains 1. ...

The range is drained by several rivers, including the Grande Ronde River, a tributary of the Snake, as well as the forks of the John Day River, a tributary of the Columbia. The Grande Ronde River is a tributary of the Snake River, approximately 180 mi (290 km) long, in northeastern Oregon and southeastern Washington in the United States. ... Mouth of the John Day River on the Columbia, spanned by a railroad bridge The John Day River is a tributary of the Columbia River, approximately 281 mi (452 km) long, in northeastern Oregon in the United States. ...