SAINT MARY'S RIVER

The 'St. Marys River', or 'St. Mary's River', may refer to:
In Canada:

★ St. Mary River, tributary of the Saskatchewan River in Montana and Alberta
In the United States:

★ St. Marys River (Maryland), tributary of the Chesapeake Bay

★ St. Marys River (Florida/Georgia), forming a portion of the boundary between Georgia and Florida

★ St. Marys River (Indiana), tributary of the Maumee River
Multi-national:

★ St. Marys River (Michigan-Ontario), connecting Lake Superior and Lake Huron and forming a portion of the international boundary between the U.S. and Canada