Usage:
No current usage.
(Rocks of †Toledo Formation (OR*) reallocated to Yamhill Formation, Netucca Formation, and Alsea Formation. See Yamhill, Netucca, and Alsea.)
Geologic age:
Eocene, late to Oligocene, middle*
Type section, locality, area and/or origin of name:
Along banks of Yaquina River, 3 mi south of Toledo, Lincoln Co., northwestern OR (Harrison and Eaton [consulting firm], 1920).
AAPG geologic province:
Western Columbia 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 ([ ]).