No current usage.
(†Brownwood division (TX) is same as Canyon Group. See Canyon.)
Pennsylvanian
Named from Brownwood, Brown Co., central TX (Dumble, 1890; Tarr, 1890).
Bend arch
Llano uplift
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 ([ ]).