Interpark Regional Trails

Interpark Regional Trails are the more than 200 miles of paved trails that connect various Regional Parks. These linking trails, which go through cities and along major streams and channels, are in addition to the trails inside the parks. Use these trails to skate from Concord to Pleasanton and beyond (Iron Horse Regional Trail), practice for a marathon by running from Niles Canyon in Fremont to the San Francisco Bay (Alameda Creek Trail), or ride your bike from Antioch to the west side of the Willow Pass in Concord (Delta de Anza Regional Trail).

TrailSafe-Tn Try the Trail Safe "app" to access safety tips, trail use etiquette and public safety phone numbers.

Learn about the "Trails Challenge" program for the adventurous who enjoy exploring new trails by foot, bicycle, horseback, or even in-line skating!

Regional Trails

Mileage Guides

Learn about Short Loop Trails

Trails Mileage Summary Report East Bay Skyline National Trail
Alameda Creek Trail - Paved Garin to Chabot
Alameda Creek Trail - Unpaved Green Valley
Alamo Canal Trail Iron Horse Regional Trail
Bay Area Ridge Trail Lafayette-Moraga
Big Break Regional Trail Las Trampas to Mt. Diablo
Black Diamond to Mt. Diablo Marsh Creek Trail
Briones to Mt. Diablo Ohlone Wilderness
Calaveras Ridge Trail Old Moraga Ranch
California Riding and Hiking Trail San Francisco Bay Trail
Contra Costa Canal Trail Tassajara Creek/Ridge Trail
Delta De Anza Trail Wildcat Creek