Grand Coulee: SR 155 at MP 25.7: SR 174
The Columbia River defines the setting of Grand Coulee — its impounded reach, Lake Roosevelt, and the broad basalt coulees of central Washington give the town a strongly engineered river landscape. Grand Coulee is closely tied to Grand Coulee Dam, a federal project built during the 1930s and 1940s that generates hydroelectric power and supplies water for the Columbia Basin Project. State Routes 155 and 174 meet in town, linking local communities with the dam area and the wider Columbia Plateau. The surrounding terrain belongs to the Channeled Scablands, a region shaped by immense Ice Age floods.
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Grand Coulee is best known within Washington for Grand Coulee Dam, the monumental Columbia River hydroelectric project completed in 1942. The city lies beside the dam near the Grand Coulee, a dry, steep-walled channel shaped by Ice Age floods and part of eastern Washington’s Channeled Scablands. Behind the dam, Lake Roosevelt extends upstream through the Columbia River valley, while the reservoir and power station demonstrate the scale of federal water and energy development in the American West. Built during the New Deal era, the dam remains central to regional electricity generation and irrigation. Continue to other webcams across Washington to compare the Columbia River country around Grand Coulee.
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Washington’s terrain runs from Pacific coastal lowlands in the west to the dry Columbia Plateau in the east, with the Cascade Range creating a marked climatic divide. Central Washington lies on the plateau side of the Cascades, where the Columbia River has cut broad valleys and irrigation supports orchards and vineyards. The state also includes Puget Sound, the intricate marine inlet around Seattle, and the volcanic cone of Mount Rainier. Seattle’s Space Needle, built for the 1962 World’s Fair, remains one of its most recognisable landmarks. Move on to other webcams in the region to compare landscapes and settings around Washington.
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The Atlantic, Pacific and Gulf coasts define much of the United States — their ports, fisheries and trade routes have long tied the country’s economy to the wider world. Between them, the Rocky Mountains, Great Plains and Mississippi River basin form sharply different regions, from high western ranges to broad agricultural heartlands. Cities carry much of the national story: New York’s Statue of Liberty, a gift from France dedicated in 1886, remains an enduring symbol, while Washington, DC concentrates major federal institutions. Indigenous nations have shaped these lands for millennia, and their living cultures remain essential to the country’s identity. Find related webcams in the surrounding areas to build a fuller picture of the United States.
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