Ash-flow tuff of main volcanic sequence
Basalt & volcanic. Cenozoic, about 34 to 23 million years old. 32 crags on this site have their map point on it.
What the map says
Includes many named units Lithology: volcanic.
1:500,000 sheet: Horton and others, 2017, U.S. Geological Survey Data Series 1052 (32 crags). A contact line at that scale is about 500 m wide on the ground.
Served by Macrostrat (CC BY 4.0). The wording is the map's own, quoted as a fact about the mapped unit, not about any one wall.
San Luis Valley
- Penitente - Inner Canyon78 routes and 1 boulder problem · Penitente Canyon · 7,990 ft
- Rock Garden61 routes and 7 boulder problems · 8,052 ft
- Penitente - Entrance Area63 routes · Penitente Canyon · 7,971 ft
- Main Wall43 routes · Promised Land, The · 8,454 ft
- Main Canyon17 routes and 1 boulder problem · Witches' Canyon · 8,074 ft
- The Pharcyde14 routes and 2 boulder problems · Pharcyde, The · 8,595 ft
- Little Black Cliff15 routes · Big Meadows · 9,076 ft
- The Quarry2 routes and 13 boulder problems · Quarry, The · 8,081 ft
- Canyon Road Cliffs13 routes and 1 boulder problem · Witches' Canyon · 8,074 ft
- Boulder City11 boulder problems · Alamosa Canyon aka Heavy Metal · 8,627 ft
- Long Cliff9 routes · Big Meadows · 9,305 ft
- Frobidden Land7 routes · Promised Land, The · 8,335 ft
- Bukowsi Boulder7 boulder problems · Stone Quarry, The · 7,991 ft
- Sidewinder Canyon6 routes · 8,170 ft
- Non Dairy Nut Cheese Wall4 routes · Promised Land, The · 8,355 ft
- West Side4 routes · Promised Land, The · 8,469 ft
- Big Meadows Bouldering3 boulder problems · Big Meadows · 9,015 ft
- The Breakfast Boulder3 boulder problems · Breakfast Boulders · 8,556 ft
- Meadow Muffin3 routes · Promised Land, The · 8,414 ft
- Rohan, Finger 23 boulder problems · Rohan · 8,400 ft
- No Man's Land2 routes · Promised Land, The · 8,446 ft
- Flag Rock1 route · 8,443 ft
- The View Wall1 route · Promised Land, The · 8,564 ft
- Rattler Boulders1 boulder problem · Rattler Cliff · 8,339 ft
- Rattler Cliff Routes1 route · Rattler Cliff · 8,311 ft