Lion's Lair - Trail Running
One of Boulder’s newest trails, Lion’s Lair is also one of the city’s best. The smooth dirt trail boasts breathtaking views, a perfect grade, and a relief from the congestion of nearby Mt. Sanitas.
Lion’s Lair climbs 2.2 miles from Sunshine Canyon to the summit of Mt. Sanitas. Runners can easily add on the Sunshine Canyon Trail and the Mount Sanitas Trail for a 5.3 mile loop.
Destination Distance From Downtown
With 780 feet of elevation gain, Lion's Lair is a solid trail run. It is a well-graded and maintained path with ample switchbacks.
Time To Complete
The 2.2 mile trail should take 30 minutes or so to ascend at a conservative uphill pace. That time is easily cut in half for the speedy downhill.
The trail is well maintained and available year round.
Dogs are not allowed on this trail.
- Backcountry Skiing
- Cross Country Skiing
- Fat Biking
- Flat Water Paddling
- Food and Drink
- Mountain Biking
- Outdoor Gear Shops
- Road Running
- Skiing & Snowboarding
- Trail Running
- White Water Paddling