The Wrango series consists of very deep, excessively drained soils that formed in alluvium from mixed rock sources.
Wrango soils are on alluvial fan and inset fans.
Slopes are 2 to 8 percent. Wrango stony fine sandy loam, rangeland. Soil moisture - Usually dry, Moist in winter and spring, dry June through October. A horizon - Noneffervescent or slightly effervescent. Averages loamy coarse sand and sand.