Usage:
Huckleberry Ridge Tuff of Yellowstone Group (ID*,MT*,WY*)
Huckleberry Ridge Tuff (ID*,MT*,WY*)
Huckleberry Ridge ash bed (informal) (CA*,ID*,IA*,KS*,MT*,NE*,NV*,TX*,UT*)
Huckleberry Ridge ash bed is downwind equivalent of Huckleberry Ridge Tuff (previously called Pearlette type B ash bed).
For informal usage, the rank or lithologic term should not be capitalized.
Geologic age:
Quaternary (Pleistocene)*
Type section, locality, area and/or origin of name:
Type section: cliff exposure at head of large landslide 1.8 km N. 10 deg. E. of Snake River bridge at Flagg Ranch on highway 3 km south of South Entrance of Yellowstone National Park, Teton Co., WY. Named from Huckleberry Ridge, a topographic crest just south of park boundary and north of Jackson Lake (Christiansen and Blank, 1972).
AAPG geologic province:
Anadarko basin*
Bighorn basin*
Central Montana uplift*
Central Western Overthrust*
Forest City basin*
Great Basin province*
Mojave basin*
Permian basin*
Salina basin*
Sedgwick basin*
Snake River basin*
Wasatch uplift*
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 ([ ]).