Threebear (soil)
{{Short description|State soil of Idaho}}
Threebear soil is the official state soil of the U.S. state of Idaho.
Profile
The Threebear series consists of moderately well drained soils formed in silty sediments with a thick mantle of volcanic ash. These soils are moderately deep to a fragipan. The name “Threebear” is derived from a creek in Latah County, Idaho. These soils are on hills with slopes of 5 to 35 percent.
Threebear soils are used mainly for timber production and wildlife habitat. The potential natural vegetation is western redcedar, grand fir, Douglas-fir, western larch, and western white pine. The average annual precipitation is about {{convert|36|in|mm|sigfig=1}}, and the average annual temperature is about {{convert|42|F}}.
References
- [https://web.archive.org/web/20120206062610/http://www.id.nrcs.usda.gov/technical/soils/threebearsoil.html Idaho State soil]