I fished it a number of times when I lived in Whitehorse [I lived there 9 years]. It's a short helicopter flight in [20 minutes] from Atlin. It is therefore accessible and affordable. The salmon fishing is unbelievable. Chrome fresh chinooks, some well in excess of 50 pounds, which you will likely never land with a fly rod in the river unless you are both extremely skilled and very lucky. But I have to be honest, a 20 to 30 pound chinook in the river and on a fly rod is a fight like nothing I have experienced in the salt. As I said earlier, the river gives the fish advantages they don't have in the ocean, and being on the bank takes away the advantages you have by being on a boat. That river (pronounced like "Mackinaw") is a tributary of the Taku. In addition to your 9/10 weight rod, bring a 5-7 weight for the hordes of huge rainbows that will also slam your fly. That place is like no other.