Stratified extremely gravelly fine sandy loam to cobbly loamy sand. Strata of very gravelly or cobbly sandy loam or fine sandy loam in upper part of substratum. Averages loamy sand. Bluewing, Gynelle, Inmo, Itme, Izamatch, Izo, Leo and Willwood soils lack Bqk horizons. Also, Bluewing, Inmo, Itme, Izo and Willwood soils lack strata of sandy loam in the control section.
Wardenot soils are on alluvial fans, fan piedmonts, fan skirts, alluvial flats and inset fans.
These soils formed in alluvium from mixed rocks. Slopes are 0 to 30 percent. Elevations are 4,300 to 6,200 feet. These are the Unsel and the competing Izo soils. Unsel soils have an argillic horizon.