The best running trails in Jefferson County
3.0
(1)
42
runners
10
runs
Last updated: November 1, 2025
17
runners
1. Keystone tunnel under the road loop from Whitehall
12.5km
01:29
460m
460m
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
runners
2. Mount Helena loop from Last Chance Gulch
5.45km
00:52
320m
320m
Expert run. Very good fitness required. Mostly accessible paths. Some sure footedness required.
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6
runners
3. Running loop from Helena West Side
3.91km
00:27
10m
10m
Easy run. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
4
runners
4. Mount Helena – Devil's Kitchen loop from Last Chance Gulch
15.9km
02:12
660m
660m
Expert run. Very good fitness required. Mostly accessible paths. Some sure footedness required.
5
runners
5. Running loop from Mansion District
10.7km
01:24
390m
390m
Expert run. Very good fitness required. Mostly accessible paths. Some sure footedness required.
4
runners
6. Lime Kiln Ruins loop from Last Chance Gulch
6.31km
00:46
160m
160m
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
6
runners
7. Mount Ascension loop from Last Chance Gulch
10.7km
01:23
330m
330m
Expert run. Very good fitness required. Mostly accessible paths. Some sure footedness required.
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