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The Lion's Den is one of Boulder County's premiere moderate bouldering areas in a beautiful and remote setting in the mountains outside of Lyons. The area is home to 40-70 odd boulder problems ranging from V0-V6/V7, with a hand full of absolute classics like Cheeseburger, Hyperion Probiscus, Ben Slab, and the Center Route in the Corridor. Located on the top on an unnamed mountain and facing roughly southwest, this is a great place to spend and afternoon pretty much year round. A moderate but beautiful hike all but assures that you will have the area to yourself, so get out there!
From Lyons, continue on US Hwy 36 towards Estes Park. Approximately 4 miles up the canyon turn left at "Shelly's Cottages," but take the road to the left of Shelly's driveway and follow it to its end at a parking lot (approximately 1.5 miles). From here, hike the road past the gate, the river wall and the reservoir. About 250 meters past the reservoir on the left is the beginning of the trail, which is faint off the road, but is well worn in the trees. The trail switchbacks about 5 full (right/left) times (there is a yellow Forest Service Marker at the end of the switchbacks and the Prow stands proud about 50 meters behind the marker) before heading towards the summit and the main area.
16 Total Routes
Browse More Classics in The Lion's Den
Mountain Project's determination of some of the classic, most popular, highest rated routes for The Lion's Den:
Center Route (Corridor) aka Hall Pass V0 4 Boulder, 18'
Big Kitty Corner V0+ 4+ Boulder, 12'
Ben (Beh?) Slab V0+ 4+ Boulder, 25'
Linoleum aka Center Route Sultry V2 5+ Boulder, 22'
Hyperion Arete V3 6a Boulder, 10'
Scrambled V4 6b Boulder, 10'
Big Cat V4 6b PG13 Boulder, 20'
Cheeseburger V4 6b Boulder, 14'
PW Traverse V4-5 6b+ Boulder, 12'
Hamburger V5 6c Boulder, 12'
Hyperion Proboscis V6 7a Boulder, 15'
Egg Roof V7 7a+ Boulder, 10'
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