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Undivided surficial deposits

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Mostly alluvium, colluvium, and glacial and landslide deposits. Primarily in Yellowstone area and Bighorn Mountains.
State Wyoming
Name Undivided surficial deposits
Geologic age Pleistocene-Holocene
Lithologic constituents
Major
Unconsolidated (Alluvial, Colluvial, Glacial, Landslide)
References

Love, J.D. and Christiansen, A.C., 1985, Geologic Map of Wyoming: U.S. Geological Survey, scale 1:500,000.

https://pubs.er.usgs.gov/publication/70046739
NGMDB product
Counties Carbon - Johnson - Lincoln - Park - Sheridan - Sweetwater - Teton - Uinta - Washakie