Older gravels and alluviums

Includes Slocum, Verdos, Rocky Flats, and Nussbaum Alluviums in east, and Florida, Bridgetimber, and Bayfield Gravels in southwest
State Colorado
Name Older gravels and alluviums
Geologic age Quaternary
Lithologic constituents
Major
Unconsolidated > Coarse-detrital > Gravel (Alluvial)
Unconsolidated (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 - Archuleta - Bent - Boulder - Broomfield - Chaffee - Cheyenne - Conejos - Crowley - Custer - Delta - Denver - Douglas - Eagle - Elbert - El Paso - Fremont - Garfield - Grand - Jackson - Jefferson - Kiowa - Lake - La Plata - Larimer - Las Animas - Lincoln - Logan - Mesa - Moffat - Montezuma - Montrose - Morgan - Otero - Ouray - Park - Pitkin - Prowers - Pueblo - Rio Grande - Routt - Saguache - Teller - Weld