Agassiz Lake

Agassiz

, Lake
A glacial lake of the Pleistocene Epoch extending over much of present-day Manitoba and including parts of Minnesota, North Dakota, Ontario, and Saskatchewan.
References in periodicals archive ?
The upper and middle reaches of tributaries occur in glacial till and beach deposits, while lower reaches of the tributaries and the Red River mainstem flow through the prime agricultural land characterized by a very-low-relief setting composed of the silty, clay deposits of the Agassiz lake bottom.