Hard hiking trails in Alaska are serious half-day to full-day commitments. Long mileage, sustained climbing, and sometimes rocky or exposed terrain push these routes well past a casual outing in the subarctic Alaska wilderness.

Trail Compass currently indexes 14 hard-rated routes in Alaska, totalling roughly 132 trail miles. The average hard trail in this state is about 9.4 miles long, which is a useful starting point when you are sketching a weekend.

Across the subarctic Alaska wilderness, the most reliable hiking season is mid-June through early September; outside that window, daylight, snowpack, and river crossings become serious limiters. Shoulder-season visits can deliver beautiful empty trails but tilt the difficulty upward — short days, possible snow, and unstaffed entry stations all add friction.

Expect wildlife typical of the subarctic Alaska wilderness: grizzly and black bears, moose along the river bottoms, Dall sheep on the high ridges, caribou herds, and bald eagles overhead. The risk of a serious encounter is low, but the cost of getting it wrong is high — give animals space, store food correctly, and never approach a young animal even if no parent is visible.

How to use this page: every trail listed below links through to a full guide with distance, elevation gain, route type, best-season notes, wildlife expectations, parking guidance, and nearby attractions. Combine this filter with the Trail Compass park pages to plan a trip around a specific Alaska destination.

All hard trails in Alaska

TrailParkLengthElevationRoute
Denali Backcountry Traverse Denali National Park and Preserve 12.68 mi 2,918 ft Point-to-Point
Denali Wilderness Loop Denali National Park and Preserve 9.35 mi 2,039 ft Loop
Denali Saddle Trail Denali National Park and Preserve 6.67 mi 1,809 ft Out & Back
Gates of the Arctic Summit Trail Gates of the Arctic National Park 7.83 mi 2,268 ft Out & Back
Glacier Bay Summit Trail Glacier Bay National Park 7.85 mi 2,145 ft Out & Back
Glacier Bay Backcountry Traverse Glacier Bay National Park 12.46 mi 2,690 ft Point-to-Point
Katmai Summit Trail Katmai National Park 7.7 mi 2,336 ft Out & Back
Katmai Backcountry Traverse Katmai National Park 12.46 mi 2,794 ft Point-to-Point
Kenai Fjords Summit Trail Kenai Fjords National Park 7.67 mi 2,228 ft Out & Back
Kenai Fjords Backcountry Traverse Kenai Fjords National Park 12.37 mi 2,807 ft Point-to-Point
Kobuk Valley Summit Trail Kobuk Valley National Park 7.97 mi 2,075 ft Out & Back
Kobuk Valley Backcountry Traverse Kobuk Valley National Park 12.59 mi 2,923 ft Point-to-Point
Lake Clark Summit Trail Lake Clark National Park 7.58 mi 2,053 ft Out & Back
Kachemak Bay Saddle Trail Kachemak Bay State Park 6.48 mi 1,635 ft Out & Back

Other difficulty tiers in Alaska

Easy trails in Alaska Moderate trails in Alaska