Outgoing
Lost Trail 1
Mountain Spot
Lost Trail 2
Lost Trail 3
Lost Trail 4
Lost Trail 5

Lost Trail

Portola Valley

A hilly 2.8-mile trail that rewards the climb with sweeping 360-degree views from Windy Hill Summit. Peaceful and well-maintained, with plenty of connecting trails if you want to extend the adventure.

Panoramic summit views
Hilly workout hike
Peaceful foggy mornings
Well-maintained paths

Tips

🌫️fog rolls in often, bring layers
🅿️arrive early for best parking
☀️exposed trail, sunscreen essential in summer

Lost Trail

Lost Trail, Portola Valley, CA 94028, USA