Upshur, Red river, San Augustine, Shelby (also got a mountain lion here covering a deer kill) and Newton County.
I'm about 110% certain all of them were young males that came out of Arkansas.
East, TX is still in the exploraty stage for a black bear reintroduction program. Right now if you hang around public land in East, TX you'll start seeing the signs informing hunters/hikers about the possibility of bears and not to confuse them with a hog (I know funny, but hog hunting with dogs is popular and people shoot at the brush a lot).
If I had to bet the big thicket would probably get picked first with boggy slough being second as a release site.
