page_title: Gifford Pinchot National Forest
section_title: Geography
hierarchical_section_title: Gifford Pinchot National Forest / Geography
caption_attribution_description: Lower Falls of the Lewis River in Washington state in autumn.
context_page_description: Gifford Pinchot National Forest is a National Forest located in southern Washington, USA, managed by the United States Forest Service. With an area of 1.32 million acres, it extends 116 km along the western slopes of Cascade Range from Mount Rainier National Park to the Columbia River. The forest straddles the crest of the South Cascades of Washington State, spread out over broad, old growth forests, high mountain meadows, several glaciers, and numerous volcanic peaks. The forest's highest point is at 12,276 ft. at the top of Mount Adams, the second tallest volcano in the state after Rainier. Often found abbreviated GPNF on maps and in texts, it includes the 110,000-acre Mount St. Helens National Volcanic Monument, established by Congress in 1982.
context_section_description: 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.
caption: Lower Falls of the Lewis River
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