



Gary Giacomini Open Space Preserve
Forest Knolls
Perimeter Road delivers rolling ridge rides through recovering redwood groves with big-sky views across Marin. The climbing is real, but so is the payoff.
Rolling terrain
Redwood groves
Ridge views
Steep climbs
Tips
🚵"Great trail connects up to the Bay Area ridge trail. It's a steep one though!"
🧢ridge is exposed — bring a hat
🅿️parking is limited at most trailheads
Gary Giacomini Open Space Preserve
Forest KnollsOpen




Perimeter Road delivers rolling ridge rides through recovering redwood groves with big-sky views across Marin. The climbing is real, but so is the payoff.
Rolling terrain
Redwood groves
Ridge views
Steep climbs
Tips
🚵"Great trail connects up to the Bay Area ridge trail. It's a steep one though!"
🧢ridge is exposed — bring a hat
🅿️parking is limited at most trailheads