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Snow depths, which vary with elevation and time of year, average an estimated 50 to 100 inches (130 to 250 cm) in the Cascades and 25 to 65 inches (64 to 165 cm) in the Blue Mountains at the end of January; by the end of April, they diminish to 40 to 120 inches (100 to 300 cm) in the Cascades and 5 to 45 inches (13 to 114 cm) in the Blues.
The Blue Mountains are a mountain range in the northwestern United States, located largely in northeastern Oregon and stretching into extreme southeastern Washington. The range has an area of about 15,000 square miles (39,000 km 2 ), stretching east and southeast of Pendleton, Oregon , to the Snake River along the Oregon– Idaho border.
It consists of foothills, low mountains, plateaus, and valleys from 500 to 3,500 feet (150 to 1,070 m). Marine weather enters the region via the Columbia River Gorge, moderating the otherwise continental climate. As a result, soil, climate, and vegetation share characteristics of both eastern and western Oregon.
The level III ecoregions in Oregon are the Coast Range (1), Willamette Valley (3), Cascades (4), Eastern Cascades Slopes and Foothills (9), Columbia Plateau (10), Blue Mountains (11), Snake River Plain (12), Klamath Mountains (78), and Northern Basin and Range (80). (Compare to map of Level IV ecoregions.)
The Oregon High Desert is a region of the U.S. state of Oregon located east of the Cascade Range and south of the Blue Mountains, in the central and eastern parts of the state. Divided into a southern region and a northern region, the desert covers most of five Oregon counties and averages 4,000 feet (1,200 m) above sea level.
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The Malheur National Forest is a National Forest in the U.S. state of Oregon.It contains more than 1.4 million acres (5,700 km 2) in the Blue Mountains of eastern Oregon.The forest consists of high desert grasslands, sage, juniper, pine, fir, and other tree species.
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related to: temperature in blue mountains portlandweather.com has been visited by 100K+ users in the past month