The best running trails in Loma Alta Open Space Preserve
4.0
(5)
450
runners
58
runs
Last updated: October 6, 2025
7
runners
1. Loma Alta Open Space Preserve loop from Fairfax
9.18km
01:05
270m
270m
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
8
runners
2. Upper Big Rock Trail loop from Canyon Green
8.28km
01:07
260m
260m
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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10
runners
3. Big Rock Trail (Bay Area Ridge Trail) — Lucas Valley Open Space
11.9km
01:38
400m
400m
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4. Goat & Big Cat Trails loop — San Rafael
11.0km
01:46
680m
670m
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Expert run. Very good fitness required. Mostly accessible paths. Some sure footedness required.
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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