No current usage.
(†Hopewell series [informal] (NM) replaced with Vadito Formation [now Vadito Group]. See Vadito.)
late Early to early Mesoproterozoic
Not stated. Origin of name not stated, but probably named from town of Hopewell. Mapped in Picuris and Petaca areas between towns of Hopewell on northwest and Picuris on southeast, Rio Arriba and Taos Cos., NM (Just, 1937).
Southern Rocky Mountain 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 ([ ]).