Morgan Fm and Round Valley Limestone
Limestone. Carboniferous, about 326 to 308 million years old. 1 crag on this site has its map point on it.
The map groups these named formations into this unit: Morgan Formation, Round Valley Limestone.
What the map says
Morgan Fm: limestone, sandstone, and shale. In far northwest. Lithology: limestone, sandstone, shale.
1:500,000 sheet: Horton and others, 2017, U.S. Geological Survey Data Series 1052 (1 crag). 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.