Jumbo Mine Trail
What to Expect
Safety Advisory
The upper sections are fully exposed with no tree cover — weather changes rapidly in the Wrangells, and hypothermia is a real risk if clouds roll in with wind and rain. Pack layers even on bluebird days.
Bears are active throughout the Kennecott area, particularly in the alder zones on the lower trail. Carry bear spray accessible on your hip, not buried in your pack.
The mine ruins are unstable — rotting timbers, open shafts, and collapsing structures are genuine hazards. Admire from a safe distance rather than exploring inside.
Trail Details
Pro Tips
Start early from Kennecott — the trail gets full sun on the upper switchbacks by mid-morning, and afternoon thunderstorms roll in fast during July and August.
Trekking poles are borderline essential for the descent, especially on the loose scree sections near the mine site where tired legs and gravity conspire against you.
Bring your camera gear to the bunkhouse ruins — the contrast of decaying timber against glaciated peaks with the Root Glacier below is one of the most dramatic compositions in Alaska's parklands.
