Deep Cut Guide

Leadville Limestone, Gilman Sandstone, Dyer Dolomite, and Parting Fm

Sandstone. Paleozoic, about 383 to 357 million years old. 26 crags on this site have their map point on it.

The map groups these named formations into this unit: Leadville Limestone, Gilman Sandstone, Dyer Dolomite, Parting Formation.

What the map says

Parting Fm: quartzite and shale. Lithology: limestone, sandstone, dolostone, minor shale, quartzite.

1:500,000 sheet: Horton and others, 2017, U.S. Geological Survey Data Series 1052 (26 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.

Rifle

Ouray vicinity (rock)

CO Ice & Mixed

Silverton area

Every mapped unit with a crag on it.