USDA Soil Order
Andisols
Soils formed from volcanic ash and other volcanic ejecta. They have unique physical properties including high water-holding capacity and low bulk density.
Volcanic originHigh water retentionLow bulk densityRich in allophane minerals
Distribution: Pacific Northwest (Cascades), Hawaii, and scattered volcanic areas.
Andisols Distribution Map
Interactive choropleth map coming soon.
Will show counties where Andisols is the dominant soil order.
Counties with Andisols as Dominant Order(0)
No counties currently have Andisols listed as the dominant soil order in our dataset.