Thurston County topographic map

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Average elevation: 326 m

The Mount St. Helens major eruption of May 18, 1980 remains the deadliest and most economically destructive volcanic event in U.S. history. Fifty-seven people were killed; 200 homes, 47 bridges, 15 miles (24 km) of railways, and 185 miles (298 km) of highway were destroyed. A massive debris avalanche,…

Average elevation: 2,096 m

Average elevation: 556 m

Mica Peak is the name of two separate mountain summits in the United States located approximately 5.49 miles (9 km) apart; one in Spokane County, Washington and the other in Kootenai County, Idaho. The two peaks are located along the same ridge, which separates the Spokane Valley and Rathdrum Prairie from the…

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Average elevation: 23 m

Adams is one of the long-lived volcanoes in the Cascade Range, with minor activity beginning 900,000 years ago and major cone building activity beginning 520,000 years ago. The whole mountain has been completely eroded by glaciers to an elevation of 8,200 feet (2,500 m) twice during its lifetime. The current…

Average elevation: 3,235 m

Average elevation: 643 m

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Average elevation: 754 m

Average elevation: 1,099 m

Average elevation: 631 m

Lester is located, east of Enumclaw, Washington along the Green River and BNSF Railway line. Its elevation is 1,634 feet (498 m) above sea level.

Average elevation: 690 m

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Average elevation: 1,137 m

Average elevation: 309 m

The peak can be accessed by two trails. The Old Mount Si trail is accessed by the Little Si parking lot and the Boulder Garden Loop. It is 0.6 miles (0.97 km) shorter, 270 feet (82 m) steeper in elevation gain, and less crowded than the main trail. The Mount Si trail is accessed by the Mount Si parking lot.

Average elevation: 787 m

Average elevation: 9 m

Mount Rainier (/reɪˈnɪər/ ray-NEER), also known as Tahoma, is a large active stratovolcano in the Cascade Range of the Pacific Northwest in the United States. The mountain is located in Mount Rainier National Park about 59 miles (95 km) south-southeast of Seattle. With an officially recognized summit…

Average elevation: 3,911 m

Average elevation: 420 m

Mount Ellinor is a peak in the Olympic Mountains of Washington, United States. It is located in an area designated as the Mount Skokomish Wilderness. The mountain is a popular day hike in the summer months; the summit is reachable via a steep-but-brief 3.3-mile (5.3 km) trail which gains about 3,200 feet (980…

Average elevation: 1,334 m

Average elevation: 540 m

Average elevation: 631 m

Adams is one of the long-lived volcanoes in the Cascade Range, with minor activity beginning 900,000 years ago and major cone building activity beginning 520,000 years ago. The whole mountain has been completely eroded by glaciers to an elevation of 8,200 feet (2,500 m) twice during its lifetime. The current…

Average elevation: 3,235 m

Average elevation: 1,382 m

Average elevation: 70 m

Average elevation: 598 m

Average elevation: 225 m

Average elevation: 724 m

Average elevation: 592 m

Average elevation: 336 m

Cathedral Rock is an intrusive andesite volcanic complex. The Alpine Lakes Wilderness features some of the most rugged topography in the Cascade Range with craggy peaks and ridges, deep glacial valleys, and granite walls spotted with over 700 mountain lakes. Geological events occurring many years ago created…

Average elevation: 1,547 m

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Average elevation: 1,021 m

Mount Stuart is more notable for its local relief than for its absolute elevation. For example, the south face rises 5,000 feet (1,500 m) in just 2 horizontal miles (3.2 km). The northeast and northwest sides of the mountain exhibit similar steep relief. Due to its location away from higher peaks, Mount Stuart…

Average elevation: 2,109 m

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Average elevation: 306 m

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Average elevation: 75 m

Hot Springs is located east of Enumclaw and just west of Lester, along the Green River and BNSF Railway line. Its elevation is 1512 feet (460m) above sea level.

Average elevation: 588 m

Average elevation: 2,066 m

Average elevation: 669 m

Average elevation: 977 m

The Mount St. Helens major eruption of May 18, 1980, remains the deadliest and most economically destructive volcanic event in U.S. history. Fifty-seven people were killed; 200 homes, 47 bridges, 15 miles (24 km) of railways, and 185 miles (298 km) of highway were destroyed. A massive debris avalanche,…

Average elevation: 2,096 m

Average elevation: 112 m

Average elevation: 1,090 m

Average elevation: 58 m

Average elevation: 46 m

Average elevation: 103 m

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Average elevation: 477 m

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