We went up and over Ship Lake Pass, then followed Ship Creek downstream for about 5K before turning around and heading back to up to Indian Creek Pass. From there we traversed around Avalanche Mountain to Powerline Pass, then skied down Powerline Pass an

I don't recommend trying this route because the traverse around Avalanche Mountain includes a fair amount of bushwacking through Alder thicket and crossing avalanche run-outs. There is also the possibility that you won't be able to get down from Powerlin