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I'd love to ice fish the river but it scares the crap out of me..
Nice fish, the dude who owns Wholey's restaurant in Pittsburgh and his buddy will catch 10-15 fish over 45" if the upper Allegheny freezes. They're tight lipped on their spots but I'm pretty sure they fish around Tionesta and the back channel around there and try to get as close to the main river as possible without dying. It's absolutely ridiculous the amount of 50 inchers they will catch if they get good ice, it will blow your mind. Check out @nicholascolangelo on IG. You may remember this article https://www.outdoornews.com/2015/03/16/huge-muskie-caught-released-through-ice-photo/They said they caught it in Arthur but I call 100% BS, that fish was caught on the river.
I was told lock 9 area