| 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 |