About This Route
Bunsen Peak (8,564 feet) near Mammoth Hot Springs provides intermediate mountaineering on a 4.4-mile loop via Bunsen Peak Trail, with 1,300 feet gain. The final chute involves class 3 boulder-hopping and exposure; winter ice lines add appeal but demand full winter kit. Proximity to thermal areas heightens gas inhalation risk if winds shift.
Safety Considerations
NPS warns of bison on lower trails; maintain 100 yards. Bears tracked here; spray ready. Hydrothermal gases rise; exit if dizzy. Windy summits chill fast. Reference REI's thermal safety: Avoid crusty ground.
Essential Gear
Petzl Picaxe ice tool, Salomon XA Pro boots. Gas mask unnecessary but monitor symptoms.
Emergency Tips
Bison charge: Run uphill. Gases: Descend to fresh air.
Safe summits await with diligent prep.