The best MTB trails in Contra Loma Regional Park
4.7
(9)
42
riders
13
rides
Last updated: November 14, 2025
3
riders
1. Star Mine Trail loop — Black Diamond Mines Regional Preserve
11.0km
01:05
240m
240m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
2. Old Homestead Loop Trail — Black Diamond Mines Regional Preserve
7.32km
00:48
210m
210m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
4. Contra Loma Shore loop — Contra Loma Regional Park
4.17km
00:20
20m
20m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
4.0
(1)
7
riders
5. Stewartville Trail – Black Diamond Shaft loop from Antioch
27.0km
02:59
830m
830m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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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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