Bridle Formation (AZ*)
Paleoproterozoic*
Crops out in two belts in southern part of Bagdad area, Yavapai Co., west-central AZ. Named from Bridle Creek, [south of Bagdad, in T. 14 N., R. 9 W., Bagdad quadrangle, Yavapai Co., west-central AZ] (Anderson and others, 1955).
Southwestern Basin-and-Range region*
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 ([ ]).