Quartzite, conglomerate, and interlayered mica schist
Sandstone. Paleoproterozoic, about 2,500 to 1,600 million years old. 7 crags on this site have their map point on it.
What the map says
The sheet gives no description for this unit. Lithology: quartzite, conglomerate, minor mica schist.
1:500,000 sheet: Horton and others, 2017, U.S. Geological Survey Data Series 1052 (7 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.
Durango
- The Lost Wall14 routes · Vallecito Crags · 8,555 ft
- Penthouse9 routes · Vallecito Crags · 9,037 ft
- Tradistan Tower6 routes · Pine River Trad · 9,540 ft
- South Park Slabs2 routes · Vallecito Crags · 8,495 ft
- The Land of the Lost1 route · Pine River Trad · 9,461 ft
- Rolling Stones Wall1 route · Pine River Trad · 9,718 ft
- The Slippery Slope1 route · Vallecito Crags · 8,841 ft