HUT TO HUT distances are usually longer than from trailhead to hut. Use winter specific topographic maps. Routes between huts are not often used so may not be tracked; navigation and breaking trail may be particularly challenging.
Pick your favorite route down into the Brush Creek drainage. The Newcomer Spring trail is more technical than Fulford Road, and either will bring you to the snow-covered East Brush Creek Road. Follow it up to road’s end at Fulford Cave Campground. At Fulford Cave Campground swing around the east end of a small lake, then angle back W for a few hundred feet to a distinct trail-cut that heads through private property. Stay on the trail as it leads past several buildings and begins to climb—and climb. The switchbacks start at 9,560 feet, and they keep you breathing hard to the Ironedge Saddle at 10,820 feet. Take care at Ironedge Saddle to identify the marked 10th Mountain suggested route that leads SE then S up through timber to the Peter Estin Hut. If you get confused here you could easily end up skiing on the Hat Creek Road up to Hat Creek Saddle. If this happens, just ski E to the hut from Hat Creek Saddle. To prevent confusion, use your compass at Ironedge Saddle.
Locations of Observed or Reported Avalanche Activity: Avalanche activity has been reported along this suggested route at locations indicated below. Elevations indicate approximate elevation where the slides crossed the trail, not the starting zones. Learn more about avalanche hazards here.
Avalanche size/destructive force is scaled according to the American Avalanche Association as follows: