Geologic map of the Ennis 30' X 60' quadrangle, Madison and Gallatin Counties, Montana, and Park County, Wyoming

Online link https://geo-nsdi.er.usgs.gov/metadata/map-i/2690/metadata.faq.html
Description The Ennis 1:100,000 quadrangle lies within both the Laramide (Late Cretaceous to early Tertiary) foreland province of southwestern Montana and the northeastern margin of the middle to late Tertiary Basin and Range province. The oldest rocks in the quadran
Originators Kellogg, Karl S. and Williams, Van S.

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