County Geologic Atlas Program

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Printed atlases available through MGS

Regional Hydrogeologic Assessment: Southwestern Minnesota

Number: RHA-2

Included Counties: Murray, Nobles, Pipestone, and Rock
Parts of: Cottonwood, Jackson, Lincoln, Lyon, and Redwood

Published in two parts:


Part A - Geology


Date: 1995

Scale: 1:200,000

Publisher: Minnesota Geological Survey (MGS  external link)

Contents (PDF and GIS files ):

  • Plate 1 - Surficial geology
  • Plate 2 - Quaternary stratigraphy

Companion Report:


Part B - Hydrogeology


Date: 1997

Scale: 1:200,000

Publisher: Minnesota Department of Natural Resources, Ecological and Water Resources Division


  • Plate 3 PDF icon. - Surficial hydrogeology (6.4 MB)
  • Plate 4 PDF icon. - Sensitivity of surficial aquifers to pollution (2.2 MB)
  • GIS files