Bay Area Ridge Trail

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Bay Area Ridge Trail
Tunnel to Alpine Pond at Russian Ridge Open Space Preserve
Length	550 mi (890 km)
Location	San Francisco Bay Area, United States
Use	Hiking, bicycling, horseback riding, birdwatching, environmental education
Waymark	Yes

The Bay Area Ridge Trail (shortened as Ridge Trail) is a planned 550-mile (890 km) multi-use trail along the hill and mountain ridgelines surrounding the San Francisco Bay Area, in Northern California. As of May 2022^[update], 400 miles (640 km) have been established.^{[citation needed]} When complete, the trail will connect over seventy-five parks and open spaces. The trail is being designed to provide access for hikers, runners, mountain bicyclists, and equestrians. It will be accessible through trailheads near major population centers, but the trail will extend into more remote areas. The first trail section was dedicated on May 13, 1989.