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University of Michigan Biological Station

The University of Michigan Biological Station (UMBS) was founded in 1909.

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Alpena Sink Holes

Longitude/Latitude: 
45.1743, -83.722
Address: 
Royston MI US
Site Overview: 
Numerous sinkholes in the limestone bedrock of northern Alpena county.
Management
Synonyms: 
Four Sinks, Bruski