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20,722 routes and 9,367 boulder problems at 2,256 Colorado crags. Every route says how sure we are of where it starts.

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Colorado rock, from the archives

Garden of the Gods · [Rock of Ages, Garden of the Gods] · C. Duhem & Bro. · 1869
Library of Congress, Prints & Photographs Division · Public domain · the record · indexed to this place by the archive

Air Force Academy · [Aerial view of the United States Air Force Academy, El Paso County, Colorado] · Trikosko, Marion S. · 1958
Library of Congress, Prints & Photographs Division · Public domain · the record · found by place name, not yet checked

Ute Pass · Manitou and vicinity - Rainbow Falls, Ute Pass · Thurlow, J. (James Thomas), 1831-1878 · 1874
Library of Congress, Prints & Photographs Division · Public domain · the record · found by place name, not yet checked

San Luis Valley · Entrance to Sah Watch valley. San Luis valley and the Sierra Blanca in the distance · P.S. Duval & Co. · 1854
Library of Congress, Prints & Photographs Division · Public domain · the record · indexed to this place by the archive

Mount Herman · [Bed of one-year-old yellow pine trees, Mount Herman Nursery, Pike National Forest, El Paso County, Colorado] · 1909
Library of Congress, Prints & Photographs Division · Public domain · the record · found by place name, not yet checked

Pike's Peak · Manitou, Pike's Peak in distance · Jackson, William Henry, 1843-1942 · 1881
Library of Congress, Prints & Photographs Division · Public domain · the record · indexed to this place by the archive

Black Canyon of the Gunnison · A rift in the rocks, Black Canyon, Colo., U.S.A. on line D&R, G.R.R. · 1898
Library of Congress, Prints & Photographs Division · Public domain · the record · indexed to this place by the archive

Leadville · Ice Palace, Leadville, Colo. · Jackson, William Henry, 1843-1942 · 1896
Library of Congress, Prints & Photographs Division · Public domain · the record · indexed to this place by the archive

City of Boulder · Viewing the little city of Boulder, Colorado, from the heights · 1906
Library of Congress, Prints & Photographs Division · Public domain · the record · found by place name, not yet checked

Boulder · Boulder, Colorado · Detroit Photographic Co. · 1900
Library of Congress, Prints & Photographs Division · Public domain · the record · indexed to this place by the archive

Photographs of these places held by the Library of Congress, the oldest from 1854. Every one carries the Library's own “no known restrictions on publication”. The whole deep-cuts layer →

1 route and 59 boulder problems+

1 The Sad Face V2
Boulder Sad Face Overhang, The The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Base placed (one source)
Not Sure 'The Loose Crimp V2-3
Boulder Sisters/Hidden Fawn Boulders · Alderfer/Three Sisters Park · 7,541 ft · granite Base placed (one source)
1 Keelhaul V3
Boulder Schooner, The Tortuga · Alderfer/Three Sisters Park · 7,677 ft · granite Base placed (one source)
19 TR Wall OW + Chimney 5.7
★ 2.5 · 12 Trad Non Eggs, The The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
2 Butter V-easy
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
2 Ghosts at the Gates V0-
Boulder Keep, The Ponderosa Trail (SOUTH) · Alderfer/Three Sisters Park · 7,643 ft · granite Position on wall known
1 Western Edge V0
Boulder Trailside Egg The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
3 Lard V0
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
8 Say Cheese V0
Boulder Non Eggs, The The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
1 Discovery V0
Boulder Non Eggs, The The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
1 Hug Jugs V0
Boulder Energy Crag · Alderfer/Three Sisters Park · 7,708 ft · granite Position on wall known
3 Peg Leg V0
Boulder Pirate's Cove · Alderfer/Three Sisters Park · 7,718 ft · granite Position on wall known
1 One Sweet Slab V0
Boulder One Sweet Slab Ponderosa Trail (SOUTH) · Alderfer/Three Sisters Park · 7,643 ft · granite Position on wall known
7 V0 V0+
Boulder Trailside Egg The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
6 National Geographic V0+
Boulder Non Eggs, The The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
6 Spotless V0+
Boulder The Subterranean Wall (A.K.A.) The Dragon's Den · Alderfer/Three Sisters Park · 7,661 ft · granite Position on wall known
9 Roller Right V0-1
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
28 Spread V0-1
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
5 Hands and Fist Crack V0-1
Boulder Energy Crag · Alderfer/Three Sisters Park · 7,708 ft · granite Position on wall known
23 Pac-Less V1
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
27 Brain Storm V1
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
14 Around the Horn V1
Boulder Non Eggs, The The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
17 Flightless Pigeons V1
Boulder Non Eggs, The The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
1 Barnacle V1
Boulder Gilligan's Island · Alderfer/Three Sisters Park · 7,701 ft · granite Position on wall known
5 Numero Tres V1
Boulder Secluded Wall High Pond · Alderfer/Three Sisters Park · 7,822 ft · granite Position on wall known
2 Sickly V1
Boulder One Sweet Slab Ponderosa Trail (SOUTH) · Alderfer/Three Sisters Park · 7,643 ft · granite Position on wall known
3 Skinslap Right V1
Boulder Roadside Ponderosa Trail (SOUTH) · Alderfer/Three Sisters Park · 7,643 ft · granite Position on wall known
3 Amazon V1+
Boulder Non Eggs, The The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
21 Bull Commanche Nest V1+
Boulder Non Eggs, The The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
12 Snarl V1+
Boulder Energy Crag · Alderfer/Three Sisters Park · 7,708 ft · granite Position on wall known
6 Right of Guiding Light V1+
Boulder Work and Play Area · Alderfer/Three Sisters Park · 7,631 ft · granite Position on wall known
1 Secret Puzzle V1-2
Boulder Brothers Lookout 1st Tier (West Side Prow) · Alderfer/Three Sisters Park · 7,524 ft · granite Position on wall known
11 Armchair V1-2
Boulder Energy Crag · Alderfer/Three Sisters Park · 7,708 ft · granite Position on wall known
1 Nerd Burglar V1-2
Boulder Keep, The Ponderosa Trail (SOUTH) · Alderfer/Three Sisters Park · 7,643 ft · granite Position on wall known
2 Skinslap Left V1-2
Boulder Roadside Ponderosa Trail (SOUTH) · Alderfer/Three Sisters Park · 7,643 ft · granite Position on wall known
8 Misfit V1-2
Boulder The Subterranean Wall (A.K.A.) The Dragon's Den · Alderfer/Three Sisters Park · 7,661 ft · granite Position on wall known
4 Reverse Transit V2
Boulder Brothers Lookout 1st Tier (West Side Prow) · Alderfer/Three Sisters Park · 7,524 ft · granite Position on wall known
8 Crack to Egg V2
Boulder Trailside Egg The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
2 Dihedral Problem V2
Boulder Trailside Egg The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
10 Flow Stream V2
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
31 Scrambles The Death Dealer V2
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
20 In Between Egg - Right V2
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
15 Boogie Boarder V2
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
10 Not Rex V2
Boulder Non Eggs, The The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
6 The Curb V2
Boulder Energy Crag · Alderfer/Three Sisters Park · 7,708 ft · granite Position on wall known
4 Numero Dos V2
Boulder Secluded Wall High Pond · Alderfer/Three Sisters Park · 7,822 ft · granite Position on wall known
1 Cape Horn V2
Boulder Pirate's Cove · Alderfer/Three Sisters Park · 7,718 ft · granite Position on wall known
11 The Plank V2
Boulder Pirate's Cove · Alderfer/Three Sisters Park · 7,718 ft · granite Position on wall known
10 Stupefied V2
Boulder The Subterranean Wall (A.K.A.) The Dragon's Den · Alderfer/Three Sisters Park · 7,661 ft · granite Position on wall known
9 Crack to Egg Right V2-3
Boulder Trailside Egg The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
6 Mr. Scott's Crack V2-3
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
1 Sweet Cave OW Crack aka Dividing Force V2-3
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
18 Chicken Feet V2-3
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
22 Take Your Pants Off (TYPO) V2-3
Boulder Non Eggs, The The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
3 Barbarian V2-3
Boulder The Subterranean Wall (A.K.A.) The Dragon's Den · Alderfer/Three Sisters Park · 7,661 ft · granite Position on wall known
3 Treefish V2-3
Boulder Work and Play Area · Alderfer/Three Sisters Park · 7,631 ft · granite Position on wall known
6 Faith By Nature V3
Boulder Brothers Lookout 1st Tier (West Side Prow) · Alderfer/Three Sisters Park · 7,524 ft · granite Position on wall known
17 The Dish (A.K.A. Sardine) V3
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
29 Don't Break Again V3
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known
8 Hot Wax V3
Boulder In Between Egg/Upper Eggs The Eggs · Alderfer/Three Sisters Park · 7,505 ft · granite Position on wall known