Upper Minnesota River Basin Regional Hydrogeologic Assessment

To order report or download PDF and GIS files for Part A: MGSexternal link icon.

To download GIS data for Part B: Index of GIS layers

PDF files for Part B PDF icon. :

Number: RHA-4

Included Counties: Swift, Chippewa, Lac qui Parle, and Yellow Medicine
Parts of: Big Stone, Lincoln, Lyon, Redwood, and Renville

Published in two parts:


Part A - Geology


Date: 1999

Scale: 1:200,000

Publisher: Minnesota Geological Survey


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

For more information: MGS County Geologic Atlas Program external link


Part B - Hydrogeology


Date: 2000

Scale: 1:200,000

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


  • Plate 3 - Surficial hydrogeology
  • Plate 4 - Geologic sensitivity to pollution of near-surface ground water