Cholla Canyon Tongue of Cliff House Sandstone of Mesaverde Group (NM*)
Late Cretaceous*
[Named from] exposures at head of Cholla Canyon, in secs. 9, 10, and 15, T. 31 N., R. 14 W., San Juan Co., northwestern NM (Hayes and Zapp, 1955).
San Juan basin*
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).