The MN DNR says that the
North Brule River "supports a resident brook trout population in at least the lower eight miles." That's still a few miles from Horseshoe Lake. I asked around a bit about this last summer before my trip to Horseshoe and was given the general impression that it was impassable. I thought I'd go look anyway and found a small stream, choked with brush. I tried to get my trout fix on
Misquah instead, but was unsuccessful.