This map highlights which trailheads require a Central Cascades Wilderness Permit for day use and those trailheads with day use opportunities requiring a free, self-issue permit at the trailhead.

Three Sisters Wilderness area covers 281,190 total acres. There are approximately 260 miles of trail within the wilderness. The Pacific Crest National Scenic Trail traverses the wilderness for 40 miles.

The Three Sisters are closely spaced volcanic peaks in the U.S. state of Oregon. They are part of the Cascade Volcanic Arc, a segment of the Cascade Range in western North America extending from southern British Columbia through Washington and Oregon to Northern California.

Nov 12, 2023 · Map of the Three Sisters region, showing locations of notable features in the area. Oregon (click for larger map) Public Domain. Hildreth et al., 2012.

Maps related to Three Sisters. The Wilderness Act (Public Law 88-577, September 3, 1964) and related acts require the U.S. Geological Survey and the U.S. Bureau of Mines to survey certain areas on Federal lands to determine the mineral values, if any, that may be present.

The Three Sisters Wilderness is a wilderness area in the Cascade Range, within the Willamette and Deschutes National Forests in Oregon, United States. It comprises 286,708 acres (1,160.27 km 2), making it the second-largest wilderness area in Oregon, after the Eagle Cap Wilderness.

This detailed map covers the Three Sisters Wilderness in Willamette National Forest featuring hiking trails and mileage, elevation, and cross-country ski routes.

The Three Sisters are closely spaced volcanic peaks in the U.S. state of Oregon. They are part of the Cascade Volcanic Arc, a segment of the Cascade Range in western North America extending from southern British Columbia through Washington and Oregon to Northern California.

Legend Three Sisters Wilderness Boundary No Campfires above 5,700 feet Designated Campsite Area Camping Prohibitions In These Areas

(Updated in 2013) The Three Sisters Wilderness Adventure Map is a waterproof, topographic (lat/long,UTM grids) map that includes route descriptions for trails in the Three Sisters Wilderness and Mount Washington Wilderness areas in Oregon.