Mostly just junk or bottles are what I find. There is one creek that is below a hill with an old native burial ground. I have found some pretty interesting things there.
Another one has an old pickup, 1924 Ford, on its side and about 2/3 buried in the sand. Not even a trail within about 1/2 mile. Wooden wheel spokes and all. Total rust bucket. Always wondered how it got there and why did they leave it.