i'm sure the topic has been brought up before, but here goes anyways.

i've never personally seen a mountain lion nor any tracks but i've been doing some research and there has been many many mountain lion sightings by upstanding citizens of pennsylvania. the pennsylvania game commission said these sightings are absolutely not true. here are some of the excuses they give:

it must have been a bobcat
it must have been a big house cat
it must been a coyote
it must have been somebody's pet that escaped
it must have been a dog

well PA has a lot of untamed woods. i've never seen a bobcat either and only seen a few coyotes in my day. nobody can tell me that it's impossible for mountain lions to be roaming the forests of pennsylvania. i believe there is WILD mountain lions living and breathing in PA.