I am over a half mile from a river and I get mink..Interesting. We're in the St. Johns part of Portland (north) and have raccoons but are too far from water to get mink. I've seen them on the docks down in Lakeside, though. For awhile there was one who'd come down on the fishing dock and wait until someone caught a small perch or bluegill...then she'd prance forward and kind of bounce around. If you threw her the fish, she'd grab it and go under the dock. She was even in the paper, with a picture of her taking a fish from a fisherman. We found out later that she took them under the dock and stashed them for when she had a litter. Also found out that it got to stinking so much (cached fish in the summer!) they had to send a diver underneath the dock to clean it out. Ew! But she sure was a cute little thing!