West Hawk Lake is an impact crater lake on the Whiteshell River located in the Whiteshell Provincial Park in southeastern Manitoba, Canada. The circular shape of the main body of the lake is due to the submerged West Hawk crater, caused by a meteor impact into an ancient rock bed composed of mostly granite. At 115 metres, it is the deepest lake in …West Hawk Lake is an impact crater lake on the Whiteshell River located in the Whiteshell Provincial Park in southeastern Manitoba, Canada. The circular shape of the main body of the lake is due to the submerged West Hawk crater, caused by a meteor impact into an ancient rock bed composed of mostly granite. At 115 metres, it is the deepest lake in Manitoba.