This event is in the past.It took place on March 8, 2026 at 1 Muir Woods Rd Parking.
Mountain Spot
Mountain SpotACTC Rides
March 8 at 10am
At 1 Muir Woods Rd Parking
Mill Valley
🚗Can join at Umunhum Trailhead to skip worst climbs
🥪Bring a snack for the summit break
⛰️Very steep sections, hike-a-bike likely
Suffer beautifully on this lung-busting climb to a decommissioned Cold War radar tower. You'll grind up loose, technical pitches (expect some hike-a-bike) before earning sweeping Bay Area views from the summit of Mt. Umunhum.
Challenging climb
Mountain biking
Self-supported ride
Scenic summit
Mountain SpotMountain SpotACTC Rides
March 8 at 10am
At 1 Muir Woods Rd Parking
Mill Valley
🚗Can join at Umunhum Trailhead to skip worst climbs
🥪Bring a snack for the summit break
⛰️Very steep sections, hike-a-bike likely
Suffer beautifully on this lung-busting climb to a decommissioned Cold War radar tower. You'll grind up loose, technical pitches (expect some hike-a-bike) before earning sweeping Bay Area views from the summit of Mt. Umunhum.
Challenging climb
Mountain biking
Self-supported ride
Scenic summit