Trail Run Project Logo

Lion's Lair Trail

 4.8 (14)
  1. Areas
  2. CO
  3. …Front Range
  4. …Boulder
  5. Mount Sanitas
Google Map

2.2 Miles 3.5 Kilometers


89%

Runnable

711' 217 m

Ascent

-40' -12 m

Descent

6%

Avg Grade (4°)

16%

Max Grade (9°)

6,807' 2,075 m

High

6,113' 1,863 m

Low

Shared By Nick Wilder

Conditions

All Clear 30 days ago
Dry History
Getting forecast...

“Fantastic views from a smooth, well-built trail.”

— Nick Wilder
Driving DirectionsGPX File

Dogs No Dogs

Features Views · Wildlife

Runner Notes

This is an unusually smooth and well-graded trail. It is much more runnable than every other trail around Mt. Sanitas, and good loops can be formed if you use Sunshine Canyon Drive to connect to Sunshine Canyon Trail.

Description

The trail was completed in the fall of 2014 and is a great addition to the area. Starting from the small parking area, take gentle switchbacks through the ponderosa forest. The grade is never steep, and at least for now, the surface is impeccably smooth. The corners and water crossings show off just how well this trail was constructed.

As you ascend, the views get better and better. Be sure to turn around and enjoy the high peaks in the distance. From the top, all of Boulder is laid out in front of you. Return the way you came, or make a long loop by going down the Sanitas Valley Trail or the Mount Sanitas Trail, then follow the Sunshine Canyon Trail back towards the beginning of this trail.

It's a shame this trailhead does not connect to Sunshine Canyon Trail (there's private property in the way), but maybe someday the county will get an easement to connect them?

Flora & Fauna

The trail name is no accident - this is one of the most frequent areas to spot mountain lions. The trails are closed a few times a year after a lion has killed a deer. You would have to be very lucky to see one... but be aware they're out there!

Contacts

Land Manager: Boulder County, CO - Parks and Open Space

You & This Trail


Rate Quality


   Clear Rating

Rate Difficulty

Share This Trail

Your Check-Ins

Check-Ins

Apr 15, 2018
Mike G
Mar 18, 2018
rob hudson
Jul 19, 2017
Courtney Peck
4.2mi — 0h 50m
Mar 25, 2017
Alyssa Countway
Ran up lions layer trail. Down the east side of Sanitas (almost to the bottom) and back up to the summit. And back down to sunshine 5.2mi
Mar 13, 2016
JonathanC
Lovely run, stays shaded in the morning and makes for a great steady, runnable climb. 2.2mi — 37h 59m
Aug 16, 2015
Gus Delaporte
2.2mi
Aug 9, 2015
Gus Delaporte
Full Details

Trail Ratings

  4.8 from 14 votes

#1

in Mount Sanitas

#64

Overall
  4.8 from 14 votes
5 Star
79%
4 Star
21%
3 Star
0%
2 Star
0%
1 Star
0%
Rankings

#1

in Mount Sanitas

#16

in Colorado

#64

Overall
173 Views Last Month
13,890 Since Jan 27, 2015
Easy/Intermediate Easy/Intermediate
0%
60%
40%
0%
0%
0%
Add a Photo

Photos

Sunrise from Mt Saintas
Sunrise from Mt Saintas
 8
Rolling on Lion's Lair Trail.
Rolling on Lion's Lair Trail.
 5
View looking west.
View looking west.
 5
Looking east from the summit at sunrise.
Looking east from the summit at sunrise.
 3
Arriving at the summit, just missed the sunrise.
Arriving at the summit, just missed the sunrise.
 3
The top of Mount Sanitas looks out at the beauty of Boulder and the Flatirons.
The top of Mount Sanitas looks out at the beaut…
 4

0 Comments

Nearby Runs

Trail runners enjoy their winter workout
2.3 mi 3.7 km
Dakota Ridge to Sanitas…
 6
Boulder, CO
Snowy Boulder from Saddle Rock Trail. with permission from BoulderTraveler
4.9 mi 7.9 km
Green Mountain via Range…
 56
Boulder, CO
Bear Peak, the Goose and the Seal with permission from BoulderTraveler
3.9 mi 6.3 km
Shanahan Ridge
 13
Boulder, CO
Sunrise from Mt Saintas
16.3 mi 26.2 km
Boulder Skyline Traverse
 55
Superior, CO

Nearby Gems

gem

Royal Arch

57
Boulder, CO
gem

Red Rocks

20
Boulder, CO

Trail Run Project is part of the REI Co-op family,
where a life outdoors is a life well lived.

Shop REI Running