We ran Black Canyon from the top down on Sunday, Shuttle route. The hike in from the upper trailhead took us about an hour in 6 inches plus of snow. The top section of the canyon was frozen over with a nice 140ft rap to start things off. We were able to stay dry except for our feet. of coarse we skipped the narrows due to ice cool water and getting near dark. Here's a few pics and a video of the trip.