About This Route
Sperry Glacier, one of Glacier National Park's largest remaining glaciers at 0.8 square miles, offers expert ski touring via Sperry Chalet approach. Skin 6 miles from Lake McDonald Lodge to 6,556-foot Sperry Glacier overlook, then traverse bergschrund zones. Historic route with Mount Vaught views; NPS notes receding ice increases hazards. Pair with crevasse rescue training from American Institute for Avalanche Research.
Safety Considerations
Crevasse falls primary risk; travel roped, probe every step per Mountaineers protocol. Avalanches from seracs above; dig pits for shear tests. Blue ice slick; crampons essential late season. Altitude sickness at 8,000 feet; acclimate gradually. Extreme cold; wind chill -40°F. Check Glacier Climate Monitoring for conditions.
Essential Gear
Petzl harness, 30m Sterling glacier rope, prusiks for rescue. Ice axe, 12-point crampons. ATK Race skins, Mammut Barryvox beacon. Crevasse rescue pulley, sled for gear. WFR kit with glacier-specific splints.
Emergency Tips
Crevasse fall: arrest team stops fall, build anchor, haul victim. Practice 2:1 Z-pulley. Avalanche: probe deeply in glacier debris. Bivy on glacier: ice screw tent platform. NPS SAR coordinates via radio from Sperry Chalet.