Plaskett soils have a mean annual soil temperature of 55 to 58 degrees F and are dry for more than 75 consecutive days. Limekiln soils are on canyon walls and shoulders. Slopes are 3 to 120 percent. These soils formed in loess and colluvium, and slope alluvium from basalt or greenstone. Elevations range from 750 to 3,300 feet.
Summers are warm and dry and winters are cool and moist.
The average annual precipitation ranges from 13 to 18 inches. Mean annual temperature is about 49 degrees F. Frost-free season is 120 to 145 days and up to 190 days in Idaho. These are the Laufer , Matheny , Pataha , Stember and Thiessen soils. All of these soils are more than 20 inches deep to a lithic contact. Used for grazing and wildlife habitat.