Soils of Oregon

Ultisols — strongly weathered, leached soils with a clay-enriched subsoil

Its state soil, Jory, is a minor one locally: 28th of 2,066 series, 0.45% of the mapped soil. First place goes to Lapine, an Andisol covering 1.4% of the state’s mapped soil. No order holds a majority; Mollisols lead with 40.8%, ahead of Andisols at 16.3%. With 2,066 named series in its soil survey, it ranks 2nd among the 52 states and territories here.

Atlas series mapped in OregonGuide: state soils and where series began