Snoqualmie Pass: I-90 at MP 52: Snoqualmie Summit
Snoqualmie Pass combines a heavily engineered Interstate 90 corridor with dense Cascade forest in a way that reflects its geographic position on the Cascade crest. The pass is one of Washington’s principal crossings between the Puget Sound lowlands and central Washington, carrying the state’s main east–west interstate route through the mountains. The surrounding Central Cascades are defined by conifer forest, steep valleys and extensive recreation lands. Nearby Hyak preserves a notable chapter of rail history: the former Milwaukee Road’s Snoqualmie Tunnel is now part of the Palouse to Cascades State Park Trail. The pass takes its name from the Snoqualmie people, whose ancestral homelands extend across this part of western Washington. It remains a transport artery and a distinct transition point across the range.
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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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