The best mountain hikes in Boulder County
5.0
(3)
28
hikers
5
hikes
Last updated: November 2, 2025
5.0
(1)
8
hikers
1. Green Mountain Summit loop from The Hill
10.8km
04:07
730m
730m
Intermediate mountaineering route. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
7
hikers
2. Dream Lake – Lake Haiyaha loop from Grand Lake
10.1km
03:10
330m
330m
Intermediate mountaineering route. Good fitness required. Mostly accessible paths. Sure-footedness required.
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5.0
(1)
5
hikers
3. Longs Peak – Granite Pass loop from Grand Lake
22.3km
10:17
1,410m
1,410m
Expert mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
3
hikers
4. Tour Stop 90 loop from The Hill
3.76km
01:16
200m
200m
Easy mountaineering route. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5
hikers
5. Twin Sisters Peaks loop from Grand Lake
10.6km
04:43
660m
660m
Intermediate mountaineering route. Good fitness required. Mostly accessible paths. Sure-footedness required.
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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