The best running trails around San Antonio Heights
5.0
(2)
163
runners
27
runs
Last updated: November 8, 2025
5.0
(1)
53
runners
1. Thompson Creek Reservoir loop from Glendora
14.3km
01:46
320m
320m
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
35
runners
2. Running loop from Alta Loma
15.3km
01:53
320m
320m
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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20
runners
3. POTATO MOUNTAIN loop from Alta Loma
22.8km
02:57
710m
710m
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
runners
4. Running loop from Monrovia
5.33km
00:34
90m
90m
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
runners
5. Sycamore Canyon Park loop from Alta Loma
9.50km
01:14
250m
250m
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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