The best running trails in Summit County
4.9
(6)
1,169
runners
200
runs
Last updated: October 20, 2025
57
runners
1. Quandary Peak Trail run — White River National Forest
10.2km
02:26
980m
980m
Expert run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(1)
30
runners
2. Buffalo Mountain Loop — Eagles Nest Wilderness
20.5km
02:58
900m
890m
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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25
runners
Expert run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
19
runners
4. Mount Royal Trail — White River National Forest
6.93km
00:59
420m
420m
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
16
runners
5. Dillon Reservoir Recpath loop run — White River National Forest
30.1km
03:32
510m
510m
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
15
runners
6. Peaks Trail run — White River National Forest
22.2km
02:45
420m
420m
Expert run. Very good fitness required. Mostly accessible paths. Some sure footedness required.
15
runners
7. Snake River Trail run — Keystone, Colorado
8.14km
00:51
60m
60m
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
12
runners
8. Soda Creek Trail loop — Keystone, Colorado
12.0km
01:30
220m
220m
Expert run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
9
runners
9. Ptarmigan Peak via Angler Mountain Trail run — White River National Forest
19.7km
03:04
1,140m
1,140m
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
9
runners
10. Cupid Peak & Grizzly Peak — Arapaho National Forest
8.58km
02:13
640m
640m
Expert run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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