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Spatial Coverage
- Erie, Lake10
- Erie, Lake.9
- Ohio4
- Ontario, Lake (N.Y. and Ont.)3
- Michigan, Lake2
- Niagara River (N.Y. and Ont.)2
- Saint Clair River (Mich. and Ont.)2
- Saint Clair, Lake (Mich. and Ont.)2
- Superior, Lake2
- Superior, Lake.2
- Africa, Northwest1
- Africa, West1
- Ashtabula1
- Buffalo (N.Y.)1
- Chicago1
- Chicago (Ill.)1
- Chicago River Region (Ill.)1
- Cleveland1
- Conneaut1
- Conneaut Harbor (Ohio)1