Trip
Trail Run – Boulder Open Space - Mount Sanitas
Lion's Lair up and down
Contacts
Dorothy Kucar
Primary Leader
- Tue, Oct 27, 2026
- Boulder
- Trail Running
- Adults, All Who Qualify
- Challenging
- Mileage: 4.5 mi
- Elevation Gain: 800 ft
- 11 (11 capacity)
- Tue, Oct 20, 2026 at 9:26 AM
- Mon, Oct 26, 2026 at 5:00 PM
- Cancellation & Refund Policy
From the upper lot off Lion's Lair trail, we'll run uphill for 2.2 miles to the summit of Sanitas, enjoy sunrise then run down the same way.
The trail is smooth, runnable single track.
6:30am, Lion's Lair trailhead (Small lot on Sunshine Canyon Dr)
40.0335375,-105.315789
Roster
Route/Place
Required Equipment
Required Equipment
headlamp
Trip Reports