Stratigraphy, lithology, and sedimentary features of Quaternary alluvial deposits of the South Platte River and some of its tributaries east of the Front Range, Colorado - Lindsey, David A.; Langer, William H.; Knepper, Daniel H. (Reston, Va. : U.S. Geological Survey, 2005)
"Description and origin of Quaternary alluvial gravel in a piedmont landscape"
Keywords: REGIÓN DEL OESTE (ESTADOS UNIDOS); ESTRATIGRAFÍA -- CUATERNARIO; GEOLOGIA HISTORICA; ROCAS SEDIMENTARIAS; SEDIMENTOS DE RIO