Bad River, Ashland County
I camp on my bear infested property alone. I sleep in the back of my truck (my F150 has a topper) and I put my bait and fish cooler in the cab.
I bring my pump 12 guage shot gun and load it with turkey loads. The ranger told me that if I pump the gun, the bears will recognise the sound and run. Do not shoot the bears. Shoot above them into the trees. They will run. Turkey loads are fatal to almost anyting at close range. I do not have a slug barrel.
I eat in town. I have no human food at camp. I am a lazy camper!
When I fish, I am in the water and walk upstream. If I think I hear bears in the brush, I whistle. I also whistle when I am on the trail returning to the truck. But only in brushy areas.
Observe the bear tracks you see. A 8 inch long track is made by a 400 pound bear. Bears of that size no longer fear humans. Most bear tracks are smaller than that.
I leave the gun in the truck when fishing. I do not carry any other device.
I did have a run in with a bear last fall. It was about 7am. I was in the river. I saw a 250 pound bear accross the 15 foot wide river. Downstream about 50 yards. He did not see me, the wind did not let him smell me. So I talked to him in a loud voice for about 15 minutes. Then he left and I continued fishing.
Don't let a few bears ruin you trip up north! The scenery is fabulous. The people friendly.