STS059-234-033 Lake Saint Clair, Michigan, U.S.A. April 1994 Sediment-laden Lake Saint Clair, a major part of the Saint Lawrence Seaway, and the Saint Clair River delta are featured in this east-southeast-looking, low-oblique photograph. Lake Saint Clair covers 490 square miles (1270 square kilometers), is approximately 30 miles (48 kilometers) long, and has a maximum depth of 26 feet (8 meters). The Saint Clair River, 40 miles (66 kilometers) long, drains Lake Huron to the north (not visible) and empties into Lake Saint Clair (left center). Lake Saint Clair is drained by the Detroit River (right center), 31 miles (50 kilometers) long, that empties into Lake Erie (not visible) to the south. Discernible are northeast and east metropolitan Detroit (lower right) and agricultural field patterns of Ontario Province in Canada east of Lake Saint Clair.