| State | Colorado |
|---|---|
| Name | Gravels and alluviums |
| Geologic age | Quaternary |
| Lithologic constituents | Major
Unconsolidated (Alluvial)
Unconsolidated > Coarse-detrital > Gravel (Alluvial)
|
| References | Tweto, Ogden, 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000. |
| NGMDB product | |
| Counties | Adams - Arapahoe - Bent - Boulder - Broomfield - Chaffee - Conejos - Costilla - Crowley - Custer - Delta - Denver - Douglas - Eagle - El Paso - Fremont - Garfield - Grand - Gunnison - Hinsdale - Jackson - Jefferson - Lake - La Plata - Larimer - Logan - Mesa - Mineral - Moffat - Montezuma - Montrose - Morgan - Otero - Ouray - Park - Pitkin - Prowers - Pueblo - Rio Blanco - Routt - Saguache - San Juan - Sedgwick - Summit - Teller - Washington - Weld |