North Santiam Travel Corridor

Mt. Jefferson Wilderness

Close To... Mt. Jefferson - Jefferson Park Trail Area Mt. Jefferson - Marion Lake Trail Area Mt. Jefferson - Maxwell Trail Area Mt. Jefferson - Pamelia Lake Trail Area Riverside Campground Marion Forks Campground Pacific Crest Trail For more information... For wilderness regulations and permit information, see the Wilderness page. Contact the Detroit Ranger District More contact information Fire Ban at Marion Lake Area Starting March 1, 2003 a fire ban is in effect in the Marion and Ann Lakes area. Check here for details.

Acres: 111,177

Elevation: 3,000'- 10,497'

Topography: Mt. Jefferson is the dominant feature of this High Cascades area, along with Three Fingered Jack (7,841'). Mt. Jefferson's slopes are mantled by five glaciers: Whitewater, Waldo, Milk Creek, Russell, and Jefferson Park. Other geographic features include steep talus slopes, rock outcrops, and alpine meadows. There are over 150 lakes, many stocked with trout.

Trails: There are 190 miles of trails, including a 40 mile stretch of the Pacific Crest National Scenic Trail.

Vegetation: Vegetation is predominantly Douglas-fir, silver fir, sub-alpine fir, mountain hemlock, lodgepole pine, ponderosa pine, several species of cedar as well as species like vine maple, huckleberry and rhododendron.

Access: The most popular entry points are Pacific Crest National Scenic Trail #2000 and Summit Trail #4041 from Highway 20 at the south end; Marion Lake Trail #3436 off Road 2255; Pamelia Lake Trail #3439 off Road 2246, 13 miles southeast of Detroit; Pacific Crest National Scenic Trail #2000 from Breitenbush Lake in the north; Duffy Lake Trail #3427, off Road 2267. Popular east side entry points are Cabot Lake Trail #3437 and Road 1234 at Jack Lake; Jefferson Lake Trail #4001, from Road 1292; Whitewater Trail #3429, off Road 2243.

High-Use Areas: Jefferson Park, Eight Lakes Basin, Marion Lake, Pamelia Lake, Jack Lake, Duffy Lake, and Santiam Lake.

Permits: Day and overnight visitors entering the wilderness are required to obtain a permit between Memorial Day and October 31. They are free of charge and must be self-issued at trailheads. Click here for more information about wilderness permits.

Exception: All visitors entering the Pamelia Limited Entry Area must obtain a limited entry permit from Detroit Ranger District.

Contact Points: Detroit (Willamette NF), Sisters (Deschutes NF), Clackamas (Mt. Hood NF) Ranger Districts.

Special Area Regulations: