what is a lake trout
General Description. The Lake Trout is a char of the same genus as Bull Trout and Brook Trout. Lake Trout are native in the St. Mary and Missouri River drainages and have been introduced to a few other scattered mountain lakes, Flathead Lake, and Fort Peck Reservoir.eneral Description. The Lake Trout is a char of the same genus as Bull Trout and Brook Trout. Lake Trout are native in the St. Mary and Missouri River drainages and have been introduced to a few other scattered mountain lakes, Flathead Lake, and Fort Peck Reservoir.