Glacial lake deposit

Light brown laminated silt, fine-grained sand, and clay. Shown only in northwestern and central-western Montana.
State Montana
Name Glacial lake deposit
Geologic age Quaternary
Lithologic constituents
Unconsolidated > Fine-detrital > Clay (Glacial)
Unconsolidated > Coarse-detrital > Sand (Glacial)
Unconsolidated > Fine-detrital > Silt (Glacial)

Vuke, S.M., Porter, K.W., Lonn, J.D., and Lopez, D.A., 2007, Geologic Map of Montana - Compact Disc: Montana Bureau of Mines and Geology: Geologic Map 62-C, 73 p., 2 sheets, scale 1:500,000. This map was digitized in 2012 as a result of a contract between the U.S. Geological Survey and the Montana Bureau of Mines and Geology.

NGMDB product
Counties Flathead - Lake - Mineral - Missoula - Sanders