Been fishing the Mile hard for 20 years and the Walleyes don't go up river very far. Many years back guys would wait there turn to go snag a hole, and once they hit there limit the next group would move in. some of the Wildlife guys that work the river said there where to many years of guys snagging all those walleyes and really hurt the eyes that would move up river to spawn. I always thought all Eyes would try to move up river to spawn, but the division guy said there are sub- species some head up river and others find rip rap.in ther lake.