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Sin La Pass Expedition Safety

Traverse Safety & Risk

Sin La Pass Expedition — Safety Guide

Altitude physiology, pass crossing go/no-go criteria, evacuation protocol, and insurance requirements.

Primary Hazards

1

Death-zone altitude (18,000ft+)

2

Technical glacier fall

3

Severe isolation/No exit

AMS Protocol

Mandatory acclimatization at Bidang. Prophylactic Diamox highly advised.

Altitude Physiology — SpO₂ by Camp

Diamox (Acetazolamide)

Recommended

Expedition Medical Kit

Diamox· Acclimatization help(Standard for 18k ft push)
Nifedipine· Emergency HAPE(Should be in guide's first aid kit)

Pass Crossing Protocol

GO Conditions

  • Full moon or clear starlight at 1 AM
  • No wind at Bidang

NO-GO Conditions

  • Sudden drop in barometric pressure
  • Visibility < 50m

Glacier Hazards — Sin La Glacier

Crevasse Zone

East Face approach to the col

Avalanche Path

South face of Adi Kailash massif

Bergschrund

Incident History — Transparency Log

We publish incident data to help you make informed decisions. All names anonymized.

Year

2022

Incident

Weather trap

Outcome / Severity

Group stranded at Bidang for 4 days

Total incidents: 3Fatalities: 0

Evacuation Route

Helicopter from Bidang or Jolingkong (Military pads)

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Knowledge Integrity

Help us keep this data ground-truth accurate.

This encyclopedia entry for Sin La Pass Expedition is curated from a mix of public survey records, first-hand climber accounts, and official permit logs. However, mountains are dynamic. If you have been on this route recently and noticed a change in terrain, water availability, or local regulations, we want to hear from you.

Community Vetted

Last Verified: May 2026

EXPEDITION DATABASE