When we bought our acreage back in 1997 it was trashed. There was a condemned cabin that was built in the thirties on the land that we had burned by the local VFD. But boy was there crap to be hauled off. I hauled off 7 tons, tons!, of steel scrap, and 5 tons of aluminum scrap. 95 tires. And about a dozen cars were hauled off by the local scrap yard. So we got all that cleaned up, along with a lot of glass. Then we started to find stuff that wasn't obvious. Like the 55 gallon drums that were buried to act as a septic system. 4 of them. And then years later I found another. As we made trails through the woods we found very old fire pits. Some not so old as they had burned shoes in them. The worst finds have been the barbed wire fencing. It was strung through the woods in various places. Then for some reason a lot of it ended up low to the ground. So it would trip folks walking through the woods. I HATE barbed wire, it should be outlawed. Oh yeah, I also found a tire on a wheel that was quite old. I was digging the root system of a huge alder out to put in a road. About 6 feet down I found an old wheel and tire someone had buried. The wheel was cast and about 30 inches in diameter. Huge and heavy. I just left that wheel with the old tire attached in the ground. It's under a road now.
Eric