Larkey Park

This easy 7.0-mile mountain biking loop offers panoramic views from Acalanes Ridge and Briones to Mt. Diablo, with 826 feet of elevation gai

The Black Hills Reservoir – Iron Horse Trail junction loop from Concord offers a diverse mountain biking experience, blending the smooth, multi-use Iron Horse Trail with more challenging terrain. You'll cruise along paved sections, enjoying views of Mt. Diablo and passing wetlands, before tackling the significant elevation gain that gives this 36.2-mile (58.3 km) route its moderate difficulty. It's a ride that keeps you engaged, transitioning from relaxed stretches to more demanding climbs.

Planning your ride, aim for the cooler seasons to make the most of this 3 hours and 41 minutes journey, especially given the 2391 feet (729 metres) of climbing. Parking is available in Concord, providing convenient access to the loop. Remember to carry enough water, particularly on warmer days, and respect the 15 mph speed limit on the shared Iron Horse Trail sections.

This route stands out among mountain bike trails in Concord for its unique combination of a long-distance, moderate challenge, and varied scenery. The Iron Horse Trail itself is a former Southern Pacific Railroad right-of-way, explaining its long, straight sections and gentle grades, which then contrast with the more rugged parts of the loop. It's a great way to explore the region, offering both a workout and a chance to see different local landscapes.