Deep Cut Guide

Perry-Mansfield Peak (10,790)

1 route · Felsic and hornblendic gneisses, either separate or interlayered · 10,705 ft

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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

Felsic and hornblendic gneisses, either separate or interlayered — gneiss, minor metabasalt, metagraywacke. Paleoproterozoic, about 2,500 to 1,600 million years old.

Includes metabasalt, metatuff, and interbedded metagraywacke; locally contains interlayered biotite gneiss. Derived principally from volcanic rocks

This is the map unit under this crag's map point, read from the 1:500,000 sheet (Horton and others, 2017, U.S. Geological Survey Data Series 1052). 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 500 m wide on the ground, so the wall itself may be the neighbouring unit. Every crag on this unit: Felsic and hornblendic gneisses, either separate or interlayered. Geology data: Macrostrat (CC BY 4.0), serving USGS and Colorado Geological Survey maps.

On the map since 1911

The USGS has mapped this ground since 1911. 23 historical sheets cover this crag's map point; the oldest is below.

Thumbnail of the 1911 USGS sheet covering Perry-Mansfield Peak (10,790)
USGS 1:125000-scale Quadrangle for Hahns Peak, CO 1911 · U.S. Geological Survey · 1911 · 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, 1911 to 2000: USGS topoView.

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.

Steamboat Springs, Colorado, Moffat Road
Steamboat Springs, Colorado, Moffat Road · Sawdey, E. F. · 1909
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.

[Lincoln Avenue in Steamboat Springs, Colorado] · Wolcott, Marion Post, 1910-1990 · 1941
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.

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.

Yellow-bellied Marmot skull - Flickr - brewbooks
Yellow-bellied Marmot skull - Flickr - brewbooks · brewbooks from near Seattle, USA · 2016 · 1,303 m from the crag's map point
Wikimedia Commons · CC BY-SA · the record · placed by its coordinates
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Gold Creek Lake - Flickr - brewbooks · brewbooks from near Seattle, USA · 2016 · 1,328 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.

Glacier Lily - Flickr - brewbooks (1) · brewbooks from near Seattle, USA · 2016 · 1,303 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.

Glacier polished boulder - Flickr - brewbooks · brewbooks from near Seattle, USA · 2016 · 1,303 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.

Yellow-bellied Marmot skull - Flickr - brewbooks (1) · brewbooks from near Seattle, USA · 2016 · 1,303 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.

Glacier Lily - Flickr - brewbooks (2) · brewbooks from near Seattle, USA · 2016 · 1,443 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.

Globe Flower - Flickr - brewbooks · brewbooks from near Seattle, USA · 2016 · 1,443 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.

Globe Flower - Flickr - brewbooks (1) · brewbooks from near Seattle, USA · 2016 · 1,443 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.

Second Gold Creek crossing - Flickr - brewbooks · brewbooks from near Seattle, USA · 2016 · 1,443 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 12:30-16:20
Wall faces W (USGS elevation). Shade from the surrounding terrain is counted.
Open sky in most directions.
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 40.79261 N, 106.68804 W (Perry-Mansfield Peak (10,790)). That point can be off by hundreds of metres, so say so.

The map point for this crag is on land managed by Routt National Forest (federal). It lies inside wilderness area, national forest.

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 Routt National Forest'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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