Deep Cut Guide

Terrace gravel

Cenozoic, up to about 2.6 million years old. 1 crag on this site has its map point on it.

What the map says

Terrace deposits formed during earlier cycles of erosion. Lithology: unconsolidated; glacial terrace; gravel.

1:100,000 sheet: Day and others, 1999, U.S. Geological Survey Open-File Report 99-0427 (1 crag). A contact line at that scale is about 100 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.

Grand Junction Area

Every mapped unit with a crag on it.