Birch Lake listed as one of the top two walleye lakes in the state. Birch Lake, led the list of Minnesota’s “Deadly Dozen” walleye lakes. The annual listing of the the twelve top walleye lakes in the state is largely based on the DNR’s fish population surveys, done mostly through test netting. Joe Geis, manager of the MN Dept. of Natural Resources’ Ely fisheries division, said he recommended Birch Lake for the list, which is put together annually by Star Tribune outdoors editor Ron Schara.