I was out doing some scouting for a bait station and saw some red and blue disks nailed to trees. They were along the Elliot north of Fairbanks and looked like the ends of some big coffee cans. That's about the best description I can give, because I didn't get too close. I don't want to walk on anyone's trap. Does anyone know if that's what they were marking? They looked new or at least well maintained. Thanks.