Geologic units in Pratt county, Kansas

Loess (Holocene to Pleistocene) at surface, covers 42 % of this area

eolian silts

Dune Sand (Holocene to Pleistocene) at surface, covers 41 % of this area

unconsolidated dune sand

Alluvium (Pleistocene) at surface, covers 15 % of this area

unconsolidated sand, silt, clay, and gravel

Alluvium (Holocene to Pleistocene) at surface, covers 2 % of this area

unconsolidated sand, silt, clay, and gravel