Very gravelly loam, extremely gravelly loam, very gravelly sandy loam. None to common on undersides of pebbles. Lomoine and Wesfil soils average less than 18 percent clay in the particle-size control section. In addition, Lomoine soils are moist for 10 to 20 days during the summer and Wesfil soils have mean annual soil temperatures of 53 to 57 degrees F. Promo soils are dry for 70 to 90 consecutive days in the summer months, and have A horizons that are 7 to 15 inches thick and silt loam textures. Puffer soils have a paralithic contact over bedrock and channery or flagstone rock fragments.
Izar soils are on hills and fan piedmont remnants with a rock core and rock pediment remnants.
These soils formed in residuum and colluvium from dolomite tuff, conglomerate, sandstone and related calcareous sedimentary rocks. Slopes are 0 to 75 percent. Elevations are 5,000 to 7,200 feet. The climate is cool, semiarid with warm, dry summers and cool, moist winters. These are the Chiara , Orovada , Oupico , Puett and Shalper soils.