| General Soil Type: | I9j | Region: | I |
| Map Unit Description: | Dark-colored, humus-rich, deep soils that formed in |
| sedimentary rocks; soils are moist year-round and have |
| properties typically associated with weathered volcanic ash |
| although tephra may be absent |
| Moisture Regime: | Udic |
| Temperature Regime: | Mesic |
| Taxonomic Classification: | Alic Fulvudands, Alic Hapludands, Andic Haplumbrepts |
| Major Soil Series: | Lytell-Zenker-Astoria-Elochoman-Snahopish-Solleks |