1. Mineral Resources
  2. Online Spatial Data
  3. Geology
  4. by state
  5. Michigan geologic units

Geologic units in Allegan county, Michigan

Coldwater Shale (Mississippian) at surface, covers 71 % of this area

Coldwater Shale

Marshall Sandstone (Mississippian) at surface, covers 29 % of this area

Marshall Sandstone

Michigan Formation (Mississippian) at surface, covers 0.2 % of this area

Michigan Formation