Fort Benton folio, Montana
Description
Fort Benton folio, MontanaSubject
Jurassic - Ellis formationCarboniferous - Quadrant formation; Madison limestone
Triassic - Ellis formation
Devonian - Monarch formation
Neogene - Stanford conglomerate
Archean - unnamed strata
Cambrian - Barker formation
Cretaceous - Montana formation; Eagle formation; Colorado formation; Dakota formation; Cascade formation
Post-Cretaceous - Highwood syenite; Wolf porphyry; Barker porphyry
Geology--Montana--Maps
Geology -- United States --Maps
Collections
Citation
Weed, Walter Harvey, 1862-1944. (1899). Fort Benton folio, Montana. Geological Survey (United States). Available electronically from https : / /hdl .handle .net /1969 .1 /3382.
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