The Clarion River is one of the highlights of people's trip to Cook Forest State Park. Not only is it one of the most beautiful rivers in Pennsylvania, but it happens to be home to the best fishing in PA. Whether you like fly fishing, or you want to rent a boat to fish in the deeper sections of the river, you'll find that Clarion River will have you hooked! There are also many trout streams nearby that are stocked with brown, brook, palomino, and rainbow trout. And if you're lucky, you might even snag a native trout.