Stop 7: Strike Valley
Encounter rock from a long-ago riverbed.
Stop 7: Strike Valley

Thin beds of reddish sandstone are river deposits of a vast Middle Triassic floodplain. These rocks of the Moenkopi Formation are softer than underlying sandstones and limestones and overlying sandstones and conglomerates. Thus, they form a “strike valley” between two ridges (cuestas).

Moenkopi sandstone at the microscopic level
This page was last updated on:
February 11, 2022.