The Lion's Den
26 boulder problems · Silver Plume Quartz Monzonite · 6,446 ft
What's here
V0 to V7, mostly around V0.
Counted from the 26 climbs here that carry a grade. Shown only where there are at least 5 of them — below that the shape is noise.
How well located
Position on wall known 2 Crag only 24
No route here has its own point yet. The map pin is the crag. At the wall? Survey it: 30 seconds per route.
Rock, from the geologic map
Silver Plume Quartz Monzonite. about 4,000 to 541 million years old.
Pale yellowish- orange to pale reddish-gray, equigranular, fine- to medium-grained, biotite- muscovite quartz monzonite; some outcrops are gray to tan, medium- to coarse-grained porphyritic quartz monzonite that contains tabular microcline phenocrysts; c
This is the map unit under this crag's map point, read from the 1:100,000 sheet (Colton, Roger B., 1976, U.S. Geological Survey Geologic Investigations Series I-855-G). The point can be a few hundred metres from the rock, a cliff often stands on the line between two units, and at that scale a line on the map is about 100 m wide on the ground, so the wall itself may be the neighbouring unit. Every crag on this unit: Silver Plume Quartz Monzonite. Geology data: Macrostrat (CC BY 4.0), serving USGS and Colorado Geological Survey maps.
On the map since 1902
The USGS has mapped this ground since 1902. 29 historical sheets cover this crag's map point; the oldest is below.
USGS Historical Topographic Map Collection · Public domain · the record · placed by its coordinates
Report this item
Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.
Public domain, U.S. Geological Survey. The sheet shows the ground as the survey found it then, which is why a trail or road you know may be missing. Every sheet over this point, 1902 to 1984: USGS topoView.
Routes
- 1 Big Cat V4
- 2 Kneebar Pussy V5
- Beh Slab V0+
- Big Kitty Corner V0+
- Center Route (Corridor) aka Hall Pass V0
- Cheeseburger V4
- Choss Boss V0
- Durango Smurfcock's Dilemma V0
- Egg Roof V7
- Hamburger V4+
- Hefe V1
- Hyperion Arete V3
- Hyperion Proboscis V6
- Incider V2
- Lager V2
- Linoleum aka Center Route Sultry V2
- Mayo on the Side V2-3
- PW Traverse V3
- Pilsner V0
- Poop Deck V0
- Right Arete (Corridor) V0
- Scrambled V4
- Seldom Seen V1
- Solitary Confinement V2
- Sunny Side Up V7
- Super Size It V2
Also within 3 km
Straight line between the two crags' map points, each of which can be some way from its rock. For when this wall is full, or the sun has found it.
Photos from climbers
No photos here yet. If you're at the crag, yours would be the first.
Taken at the crag by climbers and published as they sent them. Each one's own location had to be within 0.5 km of this crag before we accepted it. See something that shouldn't be here? Use Report this photo under it and it's hidden at once. Anything else, write to us.
Conditions reported
Nothing reported recently.
Report what you see
Reports are dated and fade on their own: wet rock after 3 days, a bad bolt after a year. No names, no text.
Access & safety
The map point for this crag is on land managed by City of Loveland (local government), in Buttonrock Res, N St Vrain Cr.
The boundary is close. Land managed by Boulder County Parks & Open Space comes within 250 m of this point, and the point is not the rock — the wall itself may be on the other side of the line. Check which before you rely on either one's rules.
Worth checking first. PAD-US records public access to this unit as “closed” (according to CNHP COMaP, 2016). That is about getting onto the unit at all, not about climbing, and we have not checked it against City of Loveland's own page.
Land manager from USGS PAD-US (public domain), read 2026-09-29. It is the manager of the crag's map point, which can be a long way from the wall. What you may do on the rock is the manager's to say, not ours.
Nobody has yet read City of Loveland's own rules for this crag and written them down here, so treat the above as where you are, not as what you may do.
Nearby, from OpenStreetMap
- Toilets
- 310 m away (map)
- Mapped parking
- 533 m away (map)
Distances are a straight line from this crag's map point, which can itself be hundreds of metres off; a road may be much longer. Mapped by OpenStreetMap contributors (ODbL), so a toilet missing here may simply be unmapped. Parking here is what OSM has drawn nearby, not a guidebook's directions.
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