Fathers day weekend this year, we were the first to pull in to camp a few days early. My wife looked in to the fire pit and it was full of broken/melted glass beer bottles. I filled and emptied up 5, 5 gallon buckets and took them to the dumpster down at the air strip on RR Lake.
Probably hunters from rifle season, its an are where a big camp can be set up and I have only seen rifle hunters or jeepers camp there and it was to early in the season to be jeepers, the trails were still closed.
This stuff happens, it sad, but I guess all we can do is take down in from the camps close to us and if they leave this type of mess, take note, pic and report it.