A couple of weeks ago I traveled to Lake Ray Roberts, Texas with fellow researcher Lance Oliver of the Texas-based group Denton Area Paranormal Society. Lance had told me previously that there had been Bigfoot activity in the area some years before, and so we decided to spend a day checking out the place (as well as the Old Alton Bridge at Denton - the haunt of a classic "Goatman" type character).
While we were out at Lake Ray Roberts, we found some intriguing things in the woods: classic "Bigfoot Teepee"-type structures; rock-piles; and more.
Take a look at the DAPS site; they're a good, enthusiastic bunch of people who do a lot of field-work.
Here's the link to the photos. Scroll down to the section titled "Lake Ray Roberts" and you'll see them.