| State | Montana |
|---|---|
| Name | Alluvial fan deposit |
| Geologic age | Quaternary |
| Lithologic constituents | Major
Unconsolidated (Alluvial)Variable deposits with fan-shaped morphology
|
| 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 - Gallatin - Jefferson - Madison - Silver Bow |