Gifford Pinchot National Forest topographic map
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Gifford Pinchot National Forest
Gifford Pinchot National Forest is located in a mountainous region approximately between Mount St. Helens to the west, Mount Adams to the east, Mount Rainier National Park to the north, and the Columbia River to the south. This region of Southwest Washington is noted for its complex topography and volcanic geology. About 65 percent of the forest acreage is located in Skamania County. In descending order of land area the others are Lewis, Yakima, Cowlitz, and Klickitat counties.
About this map
Name: Gifford Pinchot National Forest topographic map, elevation, terrain.
Average elevation: 769 m
Minimum elevation: -1 m
Maximum elevation: 3,703 m
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Mount Saint Helens
United States > Washington > Skamania County
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
Spirit Lake
United States > Washington > Skamania County
Prior to 1980, Spirit Lake consisted of two arms that occupied what had been the valleys of the North Fork Toutle River and a tributary. About 4,000 years ago, these valleys were blocked by lahars and pyroclastic flow deposits from Mount St. Helens to form the pre-1980 Spirit Lake. The longest branch of Spirit…
Average elevation: 1,144 m