Brentwood has 2 hiking trails. These trails range from 4.1 to 4.2 miles in length. The most popular trail is Round Valley Regional Preserve. Trails.com member Tanner P. recently completed Round Valley Regional Preserve. See all Brentwood trails.
Round Valley Regional Preserve
Round Valley’s single trailhead is on a lonely country road that winds through the eastern foothills of Mount Diablo. Hikers ...
Los Vaqueros Watershed
You’ll start this hike at the County Line Staging Area and walk uphill on a hiking-only loop through cattle-grazed grassland. ...