An immense prehistoric lake in the center of North America, which was fed by glacial runoff at the end of the last ice age.

One of the large lakes in North America or East Africa.

A crescent-shaped lake formed near a flat-valleyed river when one of its meanders becomes pinched off and isolated.

any lake whose waters are permanently stratified and do not completely circulate

(geology) A lake that has formed in the caldera of a volcano.

A group of five lakes on the United States–Canada border, consisting of Lake Superior, Lake Michigan and Lake Huron (Lake Michigan–Huron), Lake Erie and Lake Ontario.

A lake, fed by alkaline springs, that has no outlet

A large lake in Maine.

A large lake in northern Maine.

Any lake that is permanently covered by ice.