Mt. Jefferson Wilderness: Willamette

Willamette National Forest, Near Idanha, Oregon

Mt. Jefferson Wilderness: Willamette does not offer reservations through Please take a look at the area details below for more information about visiting this location. Enjoy your visit!


Mt. Jefferson is the dominant feature of this High Cascades area, along with  Three Fingered Jack (7,841 feet). 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.

Mt. Jefferson Wilderness covers 104,523 total acres. There are 163 miles of trail within this wilderness including a 40 mile stretch of the Pacific Crest Scenic Trail.

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.

Information about Valhalla Canyon

For trail information see:

Jefferson Park Trail Area
Marion Lake Trail Area
Maxwell Trail Area
Pamelia Lake Trail Area
Pacific Crest National Scenic Trail

Know Before You Go

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