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The WWF defines the ecoregion as inhabiting mainland coasts and islands of the Georgia Depression, a glacially depressed area dominated by the Salish Sea and numerous inflowing rivers. This differs from the Strait of Georgia/Puget Lowland ecoregion defined by the CEC in that it explicitly excludes the lowlands along the east coast of Vancouver ...
2 Puget Lowland; 3 Willamette Valley; 111 Ahklun Mountains and Kilbuck Mountains; 113 Alaska Peninsula Mountains; 115 Cook Inlet; 119 Pacific Coastal Mountains; 120 Coastal Western Hemlock-Sitka Spruce Forests; The corresponding CEC ecoregion in Canada is called the Pacific Maritime Ecozone.
The classification system has four levels. Only the first three levels are shown on this list. "Level I" divides North America into 15 broad ecoregions. "Level II" subdivides the continent into 52 smaller ecoregions. "Level III" subdivides those regions again into 182 ecoregions. [1] [2] "Level IV" is a further subdivision of Level III ...
The Coastal Lowlands ecoregion contains beaches, sand dunes and spits, and low marine terraces below 400 feet (122 m) elevation. Characteristic features include wet forests, shallow freshwater lakes, estuarine marshes, and low-gradient, meandering tannic streams and rivers. Residential, commercial, and recreational developments are expanding in ...
Alaska is the most biodiverse state with 15 ecoregions across three biomes in the same realm. California comes in a close second with 13 ecoregions across four biomes in the same realm. By contrast, Rhode Island is the least biodiverse with just one ecoregion—the Northeastern coastal forests —encompassing the entire state.
The Cascades is bordered on the north by the North Cascades ecoregion, on the south by the Klamath Mountains ecoregion, on the east by the Eastern Cascades Slopes and Foothills, and on the west by the Willamette Valley and Puget Lowland ecoregions. It been subdivided into six Level IV ecoregions in Washington and Oregon, as described below ...
The Chuckanuts are considered to be a part of the Puget Lowland Forest Ecoregion. The range contains Larrabee State Park, the first State Park to be designated in Washington (1923). Its mountains include: Anderson Mountain; Blanchard Mountain; Chuckanut Mountain (including North Chuckanut Mountain, South Chuckanut Mountain, and Chuckanut Ridge)
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.