Blue Mountains (Oregon)


Blue Mountains (Oregon)

The Blue Mountains are a mountain range located largely in eastern Oregon and stretching into southeastern Washington in the United States. The range, situated in the Pacific Northwest, has an area of convert|4060|sqmi|km2, 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 River Plateau, located in the dry area of Oregon east of the Cascade Range. The highest peaks in the range include Strawberry Mountain (9,038 ft/2,739 m) and Mount Ireland (8,304 ft/2,531 m). [ cite web
url = gnis3|1124418
title = Feature Detail Report Mount Ireland
publisher = US Geological Survey
accessdate = 2008-07-25
] The nearby Wallowa Mountains, east of the main range near the Snake River, are sometimes included as a subrange of the Blue Mountains.

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 south-southeast to north-northwest between La Grande and Pendleton. The community of Baker City sits along the southeastern flank of the range. U.S. Route 26 crosses the southern portion of the range, reaching a summit of convert|5098|ft|m at Blue Mountain Pass.

sits astride the Oregon-Washington border.

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.

References

External links

*cite web
url=http://www.getty.edu/vow/TGNFullDisplay?find=Blue+Mountains&place=&nation=&prev_page=1&english=Y&subjectid=1108805
title=Blue Mountains (mountain range)
publisher=Getty Thesaurus of Geographic Names
date=2004
accessdate=2007-07-28


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