Deep Cut Guide

Chamber of Secrets Boulder Area

8 boulder problems · clastic (Hunter Canyon Formation of the Mesaverde Group, with sandstone, shale) · 4,933 ft

Take me there Routes ↓ Directions

Help locate these routes: survey the wall

What's here

V2 to V4, but over half of these boulder problems are V3.

  1. 1 V2
  2. 5 V3
  3. 2 V4

Counted from the 8 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

Base placed (one source) 3  Position on wall known 5 

Rock, from the geologic map

Hunter Canyon Formation of the Mesaverde Group (Hunter Canyon Formation) — clastic; sandstone; shale. Late Cretaceous, about 86 to 66 million years old.

Buff and gray medium- to coarse-grained massive cliff-forming sandstone and gray to greenish-gray shale. Thickness 375 to 1,400 ft.

This is the map unit under this crag's map point, read from the 1:100,000 sheet (Day and others, 1999, U.S. Geological Survey Open-File Report 99-0427). 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: Hunter Canyon Formation of the Mesaverde Group. Geology data: Macrostrat (CC BY 4.0), serving USGS and Colorado Geological Survey maps.

On the map since 1955

The USGS has mapped this ground since 1955. 16 historical sheets cover this crag's map point; the oldest is below.

Thumbnail of the 1955 USGS sheet covering Chamber of Secrets Boulder Area
USGS 1:24000-scale Quadrangle for Mesa, CO 1955 · U.S. Geological Survey · 1955 · 1:24,000 sheet
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, 1955 to 1981: USGS topoView.

In print since 1877

Free to read: public domain or government work. About Grand Junction Area as a whole, not this wall. More in the reading room.

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.

Colorado State Highway 65
Colorado State Highway 65 · Jeffrey Beall · 2013 · 577 m from the crag's map point
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.

Routes

Photos from climbers

No photos here yet. If you're at the crag, yours would be the first.

Pick a photo from your camera roll rather than taking one here: a picture taken inside a browser usually has no location saved in it, and we check that the photo was taken at this crag before publishing it. Photos of guidebook pages and topos are refused — they're the author's work. By sending one you're letting us publish it.

Nobody reviews these before they appear, so anyone can report one and it's hidden straight away — including you, if you change your mind, and including a photographer who finds their own picture here.

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.

Sun today
sun 09:50-14:00
Wall faces SW (USGS elevation). Shade from the surrounding terrain is counted.
Deep terrain: the skyline averages 27° above horizontal, so the sun has to climb well clear of the rim before it reaches this wall.
Crags by sun and shade →
Rain & forecast
No recent weather for this crag.

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

Emergency: call 911. Read out your location: Works without signal. If GPS fails, this crag's approximate map point is 39.19400 N, 108.23735 W (Chamber of Secrets Boulder Area). That point can be off by hundreds of metres, so say so.

We don't know who manages this ground: PAD-US doesn't map this point as protected land, which most often means it is private. Find out whose it is before you go.

Nobody has yet read the land manager'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.

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