Black Peak (Kalanag) Expedition AMS Risk Calculator

Extreme altitude (6,387m) poses a very high risk of AMS, HAPE, and HACE. Strict 'climb high, sleep low' rules and adequate rest days at Kyarkoti base camp are mandatory.

The primary risks on Black Peak (Kalanag) Expedition are: High altitude sickness (AMS, HACE, HAPE), Crevasse falls on the glacier, Avalanche risk on steep slopes, Extreme cold and frostbite. Your operator should brief you on each of these before departure.

Diamox (Acetazolamide) is worth discussing with your doctor if you plan to attempt Black Peak (Kalanag) Expedition (20,955ft). It is not routinely required for healthy trekkers but is recommended if you have had AMS symptoms on a previous high-altitude trip. Never start Diamox without medical advice — it has side effects including tingling fingers and increased urination.

At 6,387m, a resting SpO2 below 80% is a medical emergency and requires immediate descent. Between 80–85% — monitor closely and do not ascend further. Most acclimatized trekkers maintain 85–92% at this altitude. Carry a pulse oximeter and check readings morning and night.

Solo climbing is suicidal and strictly prohibited. Requires a full professional rope team, certified guides, and technical glacier travel skills.