General Soil Type: Ao Region: A

Map Unit Description: Cool, deep, sandy and silty, pale forest soils of mountain

valleys; these soils formed in volcanic ash over glaciofluvial or

glaciolacustrine deposits

Moisture Regime: Xeric

Temperature Regime: Frigid

Taxonomic Classification: Typic Vitrixerands, Andic Xerochrepts, Andic Haploxeralfs

Major Soil Series: Bonner-Eloika-Rosyln-Martella-Natkim