So... I decided to check out this place again, to see if they were still there, and they weren't. All the tents were gone and just trash was left. But then I noticed a big copper pan covering something over an old campsite. It was a very nice one from like William Sanoma, so it caught my eye. But underneath it was covering a hole. they used a tire to make the opening, and under it which as like 2-3" deep was a really long tunnel that split off, and I could see a mattress. Like they have some sort of mole city. I was alone so I was not about to go crawl around down there but here's a pic of the entrance.
I'm curious as to why they moved under ground, It would be funny if I flooded it with a hose or threw some smoke bombs down there though. jk, but I want to go back with a friend and get some pics of down the tunnels, pretty crazy.