I know there are bobcats in PA. I now guys at work who've caught them on traile cams. I've never personally seen one, but I have seen a mountain lion, and have a witness to coroborate. Just last week I was talking to a friend who is a tree harvester. He spends pretty much all day, every day in the woods marking trees. He told me he's seen quite a few mountain lions and been stalked a few times himself. They're out there for sure. PA seems to be getting a little wilder every year. I love it!