Usage:
Fort Wallace Ash Bed of Ogallala Formation (KS-recognized locally in Wallace Co.)
Geologic age:
late Tertiary (Miocene)
Type section, locality, area and/or origin of name:
Named from exposures south of old Fort Wallace in tributary canyons along south side of Smoky Hill River valley, in west line of SW/4 sec. 7, T. 14 S., R. 38 W., Wallace Co., northwestern KS (Swineford and others, 1955).
AAPG geologic province:
Anadarko 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 ([ ]).