Usage:
Undine Falls Basalt*
Geologic age:
Quaternary*
Pleistocene*
Type section, locality, area and/or origin of name:
Type locality: cliff on north side of Lava Creek Canyon, just west of Undine Falls on Lava Creek, near Mammoth-Tower Junction Road, south of Mount Everts, in Yellowstone National Park, WY (Christiansen and Blank, 1972).
AAPG geologic province:
Yellowstone province*
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 ([ ]).