Dauphin Lake is located in western Manitoba near the city of Dauphin. The lake covers an area of 201 square miles and has a drainage basin of about 3,420 square miles. The Mossy River drains the lake

Winnipegosis is an unincorporated urban community in the Rural Municipality of Mossey River, Manitoba, Canada. It lies at the mouth of the Mossey River on Lake Winnipegosis in west-central Manitoba.