I have never hunted unit-93, it does look like on the map that you will be in bear country.
Bear spray for the bear & one shot in your own head with that 357 should do the trick.[&:] I honestly feel that 357 is too small to do you much good. Your bullet choice is a poor one for bears. Look for hard cast bullets, they are built for maximum penitration. I live & hunt in bear country and I do not worry about bears. keep a clean camp & keep your rifle handy. If you ever see a Grizzly bear upclose you will never forget it.