Soils of South Dakota

Mollisols — soils with a thick, dark, organic-rich topsoil

The state soil, Houdek, ranks 5th of 764 series here on 866,384 acres. First place goes to Pierre, an Inceptisol covering 2.2% of the state’s mapped soil. Mollisols make up over half of the mapped soil (63.5%).

Atlas series mapped in South DakotaGuide: state soils and where series began