Report 2047: Thumping noise heard at night, footprints found in morning

On Memorial day weekend, we camped every year at the Buck Creek Campground. This year, while sleeping in the top bunk of a small Prowler trailer, I heard several loud thumps on the ground outside the window near my head. I wasn't asleep at the time and became frightened. It sounded like heavy footsteps either walking or maybe running by our camp site. This was at about 11:30PM. The next morning I went out on the steps of the trailer to put on my shoes. At the bottom of the steps we had a rubber mat. This mat was partially sunk into the dirt on the edge of it by a 15"-16" human looking footprint, it was maybe 6" wide and 1/2" deep. It had perfect toes and there was just a slight arch to it. It looked very flat footed. There were maybe 20 of these tracks going by our camp site. I showed my family members and other people in the camp area came by to take a look. I wanted to cast it but nobody was really interested. I was just a kid at the time. I don't think anybody took any pictures either. There were left and right tracks and the step was twice my own. I think it rained just before we got to camp so it might of made the ground easier to make tracks in. I noticed that anything that was on the ground and was stepped on was pushed in as deep as the track bottom. I didn't smell or hear anything else that weekend. I at first thought that maybe someone had made them, as a joke, but after looking at how many of them there were and how deep and detailed they were I couldn't figure out how anyone could of.