Wow. Incredible fish. Would of never thought to of seen that come from this stream in that stretch. Very interesting. Isn't the assumption that if that tiger was wild, there would of needed to be of been a wild or sterile brookie that bred with a brown? Since there's no natives in valley or anywhere near it, id have to go with it would of been a stocked brookie. Which is very possible with the upstream tribs like Pickering and French that get them.
But for it to of grown to that size and not never heard of for all those years seems unlikely to me?
Which leaves the last option of it was a stocked tiger from a club, and it made its way from one of the SE tribs upstream, came down the schuykill and into valley?
FYI your pics keep dissapearing after a few minutes. Probaly because of the online convert hosting site youre leveraging.
Can you relink them again with ImgBB or IMGUR ?