Trails by State · All 50

Hike your home state

The standout trail in every US state — with mileage, elevation gain, difficulty, season notes, and a live trail map. Pick a state and start planning the next weekend out.

Top trails in Colorado (5)

Rocky Mountain NP
Strenuous
Longs Peak – Keyhole Route

Class 3 fourteener with serious exposure. 5 mi with about 5,100 ft of elevation gain. Treat this as a full alpine day: pre-dawn start, extra food and water, navigation tools, and a weather check the morning of are non-negotiable.

Distance:
14.5 mi
Gain:
5,100 ft
Type:
Out & Back
Glenwood Canyon
Moderate
Hanging Lake

Permitted hike to a travertine-rimmed gem of a lake. 0 mi with about 1,000 ft of elevation gain. Expect a steady workout with some sustained climbing — solid footwear and a couple of liters of water are recommended.

Distance:
3.0 mi
Gain:
1,000 ft
Type:
Out & Back
Maroon Bells
Strenuous
Four Pass Loop

Four 12k+ passes through the most photographed peaks in Colorado. 0 mi with about 7,800 ft of elevation gain. Treat this as a full alpine day: pre-dawn start, extra food and water, navigation tools, and a weather check the morning of are non-negotiable.

Distance:
26.0 mi
Gain:
7,800 ft
Type:
Loop
San Isabel NF
Hard
Mt. Elbert – Northeast Ridge

Colorado's tallest fourteener, on a beginner-friendly trail. 5 mi with about 4,500 ft of elevation gain. This is a challenging hike with real elevation and exposure in places; start early, pack layers, and check current trail conditions before you go.

Distance:
9.5 mi
Gain:
4,500 ft
Type:
Out & Back
Rocky Mountain NP
Hard
Chasm Lake

Alpine cirque at the base of Longs Peak's Diamond face. 4 mi with about 2,500 ft of elevation gain. This is a challenging hike with real elevation and exposure in places; start early, pack layers, and check current trail conditions before you go.

Distance:
8.4 mi
Gain:
2,500 ft
Type:
Out & Back