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Watershed Information

Au Sable watershed

Counties

Alcona
Crawford
Iosco
Kalkaska
Montmorency
Ogemaw
Oscoda
Otsego
Roscommon 

Rivers and Streams in this Watershed: 
 
  • Au Sable River 
  • Big Bradford Lake 
  • Big River 
  • Cooke Dam Pond 
  • Foote Dam Pond 
  • Lake St Helen 
  • Loud Dam Pond 
  • Mio Dam Pond 
  • Otsego Lake 
  • Pine River 
  • Van Etten Lake
Lakes in the watershed: 390
Total number of watershed acres: 26382.1
River and stream miles: 
1093.8 total river miles 
749.4 perennial river miles 
 

For more extensive data on this watershed see EPA Watershed Profiles.