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Michigan sinkholes

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karst - Michigan State University

KARST COUNTRY OF THE NE LOWER PENINSULA A unique landscape can be found in the Northeastern Lower Peninsula of Michigan about fifteen miles …

Sinkhole - Michigan Natural Features Inventory

Landscape Context. Michigan’s areas of true karst are limited in extent, but include considerable variety. The most extensive area of sinkholes and earth cracks is found in Alpena and Presque Isle Counties.