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The Willamette Valley (/ w ɪ ˈ l æ m ɪ t / ⓘ wil-AM-it) is a 150-mile (240 km) 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, the Oregon Coast Range to the west, and the ...
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The Willamette Valley ecoregion is a Level III ecoregion designated by the United States Environmental Protection Agency in the U.S. states of Oregon and Washington.Slightly larger than the Willamette Valley for which it is named, the ecoregion contains fluvial terraces and floodplains of the Willamette River system, scattered hills, buttes, and adjacent foothills.
Willamette Valley map showing main stem and major tributaries. The Willamette River drains a region of 11,478 square miles (29,730 km 2), which is 12 percent of the total area of Oregon. [4] Bounded by the Coast Range to the west and the Cascade Range to the east, the river basin is about 180 miles (290 km) long and 100 miles (160 km) wide. [13]
Located 26 miles (42 km) upriver from the Willamette's mouth at Portland, Willamette Falls is a culturally significant site for many tribal communities in the region. Opened in 1873 and closed since 2011, the Willamette Falls Locks allowed boat traffic on the Willamette to pass into the main Willamette Valley .
Willamette (/ w ɪ ˈ l æ m ɪ t / wil-AM-it), from the Clackamas language of the Columbia River, Oregon, can refer to: . A toponym of the U.S. state of Oregon: . Willamette River, a tributary of the Columbia River in northwestern Oregon
Willamette River flowing under the Ellsworth Street Bridge in Albany. Downstream of RM 160 (RK 260), the Willamette stops being the border between Lane and Linn counties, flows for about 1 mile (2 km) entirely in Linn County, then becomes the border between Linn County on the right and Benton County on the left. McCartney County Park straddles ...
The Kalapuya are a Native American people, which had eight independent groups speaking three mutually intelligible dialects.The Kalapuya tribes' traditional homelands were the Willamette Valley of present-day western Oregon in the United States, an area bounded by the Cascade Range to the east, the Oregon Coast Range at the west, the Columbia River at the north, to the Calapooya Mountains of ...