Cutler Group (AZ*,CO*,NM*,UT*)
Cutler Formation (AZ*,CO*,NM*,UT*)
GROUP STATUS (alphabetical): Cedar Mesa Formation (AZ,UT) or Cedar Mesa Sandstone (UT), De Chelly Sandstone (AZ*,CO*,NM*,UT), Elephant Canyon Formation (UT), Halgaito Formation (AZ*,CO*,NM*,UT*), Organ Rock Formation (AZ*,CO*,NM*,UT*), White Rim Sandstone (UT).
FORMATION STATUS (alphabetical): Cedar Mesa Sandstone Member (AZ*,CO*,NM*,UT*), De Chelly Sandstone Member (AZ*,CO,NM*,UT*), Halgaito Member (AZ*,CO*,UT*) or Halgaito Tongue (AZ*,UT*), Organ Rock Member (AZ*,UT*) or Organ Rock Shale Tongue (NM) or Organ Rock Tongue (AZ*,UT*), White Rim Sandstone Member (UT*).
Early Permian (Wolfcampian)*
Named from exposures on Cutler Creek, which enters Uncompahgre River about 4 mi north of Ouray, Ouray Co., southwestern CO (Cross and Howe, 1905).
Black Mesa basin*
San Juan basin*
San Juan Mountains province*
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.
"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).