CO Ice & Mixed
75 routes at 23 crags. "CO Ice & Mixed" is the catalogue's own grouping — a town, a canyon or a corridor, whichever climbers actually say.
Which way a wall faces is known for 16 of these 23; the rest say nothing rather than guess. Sun and shade by season ranks the ones we know.
At a glance
- Crags sit between 6,458 and 14,235 ft (elevation known for 23 of 23).
- Rock, where known (23 of 23 crags): gneiss, schist & quartzite (9), sandstone (8), granite (6).
- Mapped geology under these crags (23 of 23 read off the geologic map): biotitic gneiss, schist, and migmatite (3), biotite gneiss (2), leadville limestone, gilman sandstone, dyer dolomite, and parting fm (2) and 13 more units.
- The USGS has mapped this ground since 1888; each crag page shows its oldest sheet.
- No crag here is within 1.5 km of an RTD stop. 1 with a county-flagged climber-access trail. Mapped toilets within 2 km of 14.
- Sun and shade:
- In the shade on a summer afternoon (7)
- That are shady in the morning and sunny later (5)
- That stay shady almost all day in summer (4)
- High enough to be cool in summer (14)
- In the sun on a winter afternoon (2)
- In the sun all day in winter (1)
- That catch the morning sun in spring (7)
- In the afternoon sun in autumn (3)
From the archives
Photographs of CO Ice & Mixed held by the Library of Congress, oldest first, each marked "no known restrictions on publication" by the Library. Shown from their servers, not copied here.
Royal Arch, from Devil's Staircase on the Flatirons, S.E. near Boulder, Colo. · 1910 · stereograph
Library of Congress, Prints & Photographs Division · Public domain · the record · found by place name, not yet checked
Library of Congress, Prints & Photographs Division · Public domain · the record · found by place name, not yet checked
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Tree-shaded Boulder and the curious Flatirons S. from Lovers Hill, Colo. · 1910 · stereograph
Library of Congress, Prints & Photographs Division · Public domain · the record · found by place name, not yet checked
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.
RMNP - Mixed/Ice
Ouray (Ice/Mixed)
- Camp Bird Road9 routes · faces NW · Pre-ash-flow andesitic lavas, breccias, tuffs, and conglomerates · 9,948 ft
- Uncompahgre Gorge aka Ouray Ice Park7 routes · Leadville Limestone, Gilman Sandstone, Dyer Dolomite, and Parting Fm · 7,779 ft
- Hall of Justice1 route · Leadville Limestone, Gilman Sandstone, Dyer Dolomite, and Parting Fm · 7,759 ft
Mt. Evans - mixed, couloirs
Colorado Springs & vicinity
Indian Peaks & James Peak Wilderness Areas
Tenmile Canyon aka Officer's Gulch
Vail Ice
- Rigid Designator Amphitheatre1 route · faces N · arkose (Minturn Fm in west-central and south-central and other units, with conglomerate, shale) · 8,815 ft
- Spiral Staircase area1 route · faces N · arkose (Minturn Fm in west-central and south-central and other units, with conglomerate, shale) · 9,004 ft
Clear Creek Canyon - Ice
Crested Butte
Flatirons
Glenwood Canyon Ice
Gore Range
Lookout Mountain Dry Tooling Area
Quandary Peak/Blue Lakes
Every crag here comes from the open catalogue or a cited guidebook; see Sources & licences. Counts are the current build's.