22 verified listings so far. Every one links to its official source.
Verified listings in Tri-Valley & Contra Costa, San Francisco Bay Area.
📍 Walnut Creek / Clayton · Tri-Valley & Contra Costa
State park centered on 3,849-foot Mount Diablo with summit observation deck, historic stone visitor center, Rock City formations, Mitchell Canyon trails, and extensive hiking, cycling, and equestrian routes. Famous long-distance summit views when conditions are clear.
Details Official site ↗📍 Pleasanton · Tri-Valley & Contra Costa
Former gravel quarry turned 266-acre EBRPD park with an 80-acre lake, picnic grounds, fishing, electric-motor boating, interpretive pavilion (2022), and trails. Lake Trail partially closed due to terrain damage (notice dated November 3, 2026).
Details Official site ↗📍 Pleasanton · Tri-Valley & Contra Costa
About 9,090 acres of oak-covered ridgeland overlooking Pleasanton and the Livermore Valley, with multi-use trails for hikers, equestrians, and bicyclists, canyon views, and ridgetop vistas. Tyler Ranch Staging Area adds substantial trail access.
Details Official site ↗Paid activities with prices from each official site.
📍 Walnut Creek / Clayton · Tri-Valley & Contra Costa
State park centered on 3,849-foot Mount Diablo with summit observation deck, historic stone visitor center, Rock City formations, Mitchell Canyon trails, and extensive hiking, cycling, and equestrian routes. Famous long-distance summit views when conditions are clear.
Details Official site ↗📍 Pleasanton · Tri-Valley & Contra Costa
Former gravel quarry turned 266-acre EBRPD park with an 80-acre lake, picnic grounds, fishing, electric-motor boating, interpretive pavilion (2022), and trails. Lake Trail partially closed due to terrain damage (notice dated November 3, 2026).
Details Official site ↗Pick free stuff, paid stuff or both. Unsubscribe anytime.
