The best running trails in Horsetooth Mountain Open Space
4.0
(4)
2,054
runners
189
runs
Last updated: October 7, 2025
40
runners
1. Horsetooth Mountain loop from Clarendon Hills
8.15km
01:14
410m
410m
Expert run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
23
runners
2. Arthurs Rock Trailhead loop from Clarendon Hills
18.2km
02:01
250m
250m
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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7
runners
3. Running loop from Clarendon Hills
7.98km
01:06
260m
260m
Expert run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
12
runners
4. Arthur's Rock Summit – Arthurs Rock Trailhead loop from Westgate
7.29km
01:04
330m
330m
Expert run. Very good fitness required. Mostly accessible paths. Some sure footedness required.
11
runners
5. Rim Rock Open Space loop from Clarendon Hills
42.8km
05:28
910m
910m
Expert run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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