Work and Play Area
42 boulder problems · granite (Silver Plume-type quartz monzonite) · 7,631 ft
What's here
VB to V8, mostly around V2.
Counted from the 42 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 6 Crag only 36
No route here has its own point yet. The map pin is the crag. At the wall? Survey it: 30 seconds per route.
The order of the climbs along this wall is known from the open catalogue, so a few surveys go a long way: standing at Levitating Starfish, Right of Guiding Light (2 climbs, about 60 seconds) would place up to 4 more climbs between them. Survey the wall →
“Up to” because the estimate between two surveyed routes is only used when they turn out to be close enough together on the ground.
Rock, from the geologic map
Silver Plume Quartz Monzonite. Mesoproterozoic, about 1,600 to 1,000 million years old.
Coarse-grained to fairly fine-grained muscovite-biotite quartz monzonite. Locally foliated. Age about 1.44 billion years (Hedge, 1969).
This is the map unit under this crag's map point, read from the 1:100,000 sheet (Trimble and others, 2003, U.S. Geological Survey Geologic Investigations Series I-856-H). 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. The rock named at the top of this page comes from the public geology of this area; this card is the map's answer. 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 1899
The USGS has mapped this ground since 1899. 24 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
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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, 1899 to 1994: USGS topoView.
Photographs near this crag
Taken within 1.5 km of this crag's map point and published under a licence that lets us show them, from Wikimedia Commons. The coordinates say where the camera was, not what it was pointed at, so some of these will be the creek or the trail rather than the rock.
Wikimedia Commons · CC BY-SA · the record · placed by its coordinates
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Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.
Wikimedia Commons · CC BY-SA · the record · placed by its coordinates
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Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.
Wikimedia Commons · CC BY-SA · the record · placed by its coordinates
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Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.
Wikimedia Commons · CC BY-SA · the record · placed by its coordinates
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Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.
Wikimedia Commons · CC BY-SA · the record · placed by its coordinates
Report this item
Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.
Wikimedia Commons · CC BY-SA · the record · placed by its coordinates
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Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.
Wikimedia Commons · CC BY-SA · the record · placed by its coordinates
Report this item
Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.
Wikimedia Commons · CC BY-SA · the record · placed by its coordinates
Report this item
Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.
Wikimedia Commons · CC BY-SA · the record · placed by its coordinates
Report this item
Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.
Wikimedia Commons · CC BY-SA · the record · placed by its coordinates
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Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.
Wikimedia Commons · CC BY-SA · the record · placed by its coordinates
Report this item
Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.
Wikimedia Commons · CC BY-SA · the record · placed by its coordinates
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Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.
8 more on Commons.
Routes
- 1 Levitating Starfish V6-7
- 2 Starfish V3-4
- 3 Treefish V2-3
- 4 Misguided V4-5
- 5 Guiding Light A.K.A Round Up V3
- 6 Right of Guiding Light V1+
- Able-Bodied V1-
- Beta Particle V2+
- Black Key V4-
- Cause V1
- Child Play Dyno V4-5
- Child's Play V6-7
- Cut Out The Craze V2
- Dead To The World V0-1
- Eco-Boost V1-2
- Face Right of Crack V1+
- Flash Fried Dyno V4
- Fragments For Friends V7-8
- Hot off the Grill Dyno V3
- In An Order That Would Surprise You V2+
- Inward Particle V2
- Irregular V0-
- Just-Cause V1-2
- Key Note V4-5
- Lieback Crack V1
- Shadow Puppet V2
- Strike The Cord V2-3
- Suggestions For Use V1
- Suited To Sense V0-
- Take It To Work V0+
- The Grill V0+
- The Lukes... A.K.A. Loyalty To Skill V4
- The Piano V8
- The Troll Cave V3
- The Troll Pull V2
- The Troll Throw V2-
- Top-Heavy V2
- Troll Rockover V2
- Unknown V2-3
- Wise Crack V0
- Work It V1
- Working The Night Shift V4
Also within 3 km
- The Pass134 m · 17 boulder problems · 7,734 ft
- The Three Sisters141 m · 6 routes and 1 boulder problem · 7,753 ft
- Sisters/Hidden Fawn Boulders150 m · 10 boulder problems · 7,541 ft
- Energy Crag246 m · 1 route and 13 boulder problems · 7,708 ft
- The Land of Slabs282 m · 19 boulder problems · 7,689 ft
- The Eggs353 m · 3 routes and 60 boulder problems · 7,505 ft
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 Jefferson County Open Space (local government), in Alderfer/Three Sisters Park. It lies inside local park.
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.
Rules for all Jefferson County Parks & Open Space land
- Climbing permit
- Installing fixed hardware on a new route requires a permit: a Fixed Hardware Application, vetted by the Fixed Hardware Review Committee before the Climbing Committee decides.
- Hours
- Unlawful to be on Open Space land from one hour after sunset to one hour before sunrise, unless posted otherwise.
- Rules
- JCPOS does not install, maintain or inspect hardware related to rock climbing. Climbing ethics differ by park -- Clear Creek Canyon, the Cathedral Spires and the South Platte each have their own published guidelines.
- Overnight
- Camping by advance permit only, obtained online at least 24 hours ahead -- not at the park, headquarters or by phone. Only White Ranch and Reynolds Parks, tent-only.
- Dogs
- Dogs must be on a leash ten feet or less in length and under physical control.
Read on Jefferson County Parks & Open Space's own pages, checked 2026-09-29 by John Crawford. What they require, in full, or their own climbing page. These apply to the manager's whole holding; anything specific to this crag is above.
Approach trail, from Jefferson County
Sisters Trail in Alderfer/Three Sisters Park passes 23 m from this crag's map point. The county rates it most difficult. Pets: yes.
A segment the county flags as climber access, drawn on the Take me there map. Where it leaves the trail for the base of the wall is the guidebook's to say, not ours.
Nearby, from OpenStreetMap
- Toilets
- 756 m away (map)
- Mapped parking
- 776 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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