Deep Cut Guide

Hall of Mirrors

1 route · granite (Pikes Peak Granite) · 8,337 ft

Help locate these routes: survey the wall

How well located

Crag only 1 

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

Pikes Peak Granite. Mesoproterozoic, about 1,600 to 1,000 million years old.

White to orange-pink biotitic or biotite-hornblende granite, granodiorite, and quartz-monzonite. Weathers to disaggregated mass of constituent minerals (called grus). Age about 1.04 billion years (Hedge and others, 1967, p. 551).

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: Pikes Peak Granite. Geology data: Macrostrat (CC BY 4.0), serving USGS and Colorado Geological Survey maps.

On the map since 1893

The USGS has mapped this ground since 1893. 33 historical sheets cover this crag's map point; the oldest is below.

Thumbnail of the 1893 USGS sheet covering Hall of Mirrors
USGS 1:125000-scale Quadrangle for Platte Canyon, CO 1893 · U.S. Geological Survey · 1893 · 1:125,000 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, 1893 to 1994: USGS topoView.

In print since 1877

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

From the archives

Photographs of this area held by the Library of Congress, oldest first. Every one carries the Library's own "no known restrictions on publication"; anything else is left out.

Platte Canon, Colorado · Jackson, William Henry, 1843-1942 · 1899 · photochrom
Library of Congress, Prints & Photographs Division · Public domain · the record · indexed to this place by the archive
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Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.

Threshing wheat near Sedgwick, Colo., South Platte Valley on Union Pacific · Stimson, Joseph Elam, 1870-1952 · 1900
Library of Congress, Prints & Photographs Division · Public domain · the record · found by place name, not yet checked
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Hidden as soon as you tell us, everywhere it appears, before anyone reviews it.

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.

Cathedral Spires, Garden of the Gods, 2009 · DimiTalen · 2009 · 729 m from the crag's map point
Wikimedia Commons · CC0 · 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

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.

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 07:20-16:20
Wall faces S (USGS elevation). Shade from the surrounding terrain is counted.
Deep terrain: the skyline averages 21° above horizontal, so the sun has to climb well clear of the rim before it reaches this wall.
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 39.42212 N, 105.25562 W (Hall of Mirrors). That point can be off by hundreds of metres, so say so.

The map point for this crag is on land managed by Jefferson County Open Space (local government), in Cathedral Spires 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

Sunshine Trail in Cathedral Spires Park passes 196 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.

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