I've had great fishing over the entire length of the river (including the Hailstone section).If the upper sections are floatable in June, you can expect huge crowds on the weekends, which isn't great for the fishing.If,on the other hand, it's too low for floating and you don't mind some serious hiking/bushwacking you can be in for a treat. I'd suggest taking a backpack with lots of water,food,and light survival gear. I hope this helps. Dan-o