| State | Montana |
|---|---|
| Name | Gravel |
| Geologic age | Quaternary |
| Lithologic constituents |
Major
Unconsolidated > Coarse-detrital > Gravel (Alluvial, Glacial-outwash)
Minor
Unconsolidated > Fine-detrital > Silt (Alluvial, Glacial-outwash)
Unconsolidated > Coarse-detrital > Sand (Alluvial, Glacial-outwash)
Unconsolidated > Fine-detrital > Clay (Alluvial, Glacial-outwash)
|
| References | 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 | Beaverhead - Big Horn - Broadwater - Carbon - Carter - Cascade - Chouteau - Custer - Daniels - Dawson - Deer Lodge - Fallon - Fergus - Flathead - Gallatin - Garfield - Golden Valley - Granite - Hill - Jefferson - Judith Basin - Lake - Lewis and Clark - Liberty - McCone - Madison - Meagher - Mineral - Missoula - Musselshell - Park - Petroleum - Phillips - Pondera - Powder River - Powell - Prairie - Ravalli - Richland - Rosebud - Sanders - Silver Bow - Stillwater - Sweet Grass - Teton - Toole - Treasure - Valley - Wheatland - Wibaux - Yellowstone |