Auden's Col Trek

Auden's Col trek is a 14–16 day extreme-grade glaciated crossing in Uttarakhand, connecting Gangotri to Ghuttu via a col at ~5,490 m. Technical glacier skills and prior Himalayan experience are mandatory.

Deep in the Garhwal Himalaya of Uttarakhand, the Auden's Col trek stands apart as one of India's most remote, technically demanding, and breathtakingly rewarding high-altitude crossings. Connecting the Gangotri valley to the Kedarnath valley via a glaciated col at approximately 5,490 metres, this is not a trek for the faint-hearted or the underprepared. It is, however, a route that rewards those who come ready: with sweeping views of the Jogin massif, weeks spent on the raw ice of the Gangotri and Khatling glaciers, and the deep satisfaction of completing a passage that fewer than a few hundred trekkers attempt each year.

In the 2026 trekking season, Auden's Col remains one of the least commercialised extreme treks in India. If you have logged serious Himalayan miles, carry glacier travel skills, and are ready to spend up to 16 days in genuine wilderness, this guide will walk you through everything you need to know.

The col takes its name from John Bicknell Auden, a British geologist working with the Geological Survey of India who first crossed this high pass in 1935 while conducting surveys in the Garhwal Himalaya. His crossing connected two of the most sacred river systems in India — the Bhagirathi (Gangotri) and the Mandakini (Kedarnath) — and opened a route that remains largely unchanged nearly a century later.

What makes the Auden's Col trek exceptional is the sheer scale and variety of its landscape. You will walk beside the Gangotri Glacier, one of the largest glaciers in the Himalayas outside the polar regions. You will camp in the shadow of the Jogin massif and Thelu Peak, watching alpenglow paint granite faces at dusk. The crossing brings you onto the Khatling Glacier on the southern descent — a world of seracs, moraines, and glacial lakes that feels entirely removed from the India most people know.

Unlike Roopkund or the Valley of Flowers, which draw tens of thousands of visitors annually, Auden's Col sees a fraction of that footfall. There are no tea houses on the glacier, no phone signal at the high camps, and no rescue team within easy reach. That is precisely the appeal for serious trekkers who regard the high-altitude treks of India as a pursuit, not a weekend hobby.

For anyone building toward expeditions or simply seeking the best that the Garhwal Himalaya has to offer, Auden's Col belongs on the list.

The classic route runs from Gangotri (3,048 m) in Uttarkashi district, northeast along the Bhagirathi valley and then up the Gangotri Glacier, crossing Auden's Col (~5,490 m), and descending via the Khatling Glacier to Ghuttu (~1,800 m) in Tehri Garhwal district. The reverse direction is also possible but less commonly trekked.

Total distance: approximately 90–110 km (route length varies with glacier detours and acclimatisation loops;).

The elevation profile is relentless. From Gangotri you gain altitude steadily through Bhojbasa and Nandanvan before the route steepens sharply onto glaciated terrain. The final approach to the col involves exposed snow and ice slopes. The descent to Khatling is equally steep and technically involved before the trail drops through forest and village to Ghuttu.

Key technical sections:
- Glacier travel on the Gangotri Glacier between Nandanvan and Vasuki Tal
- The col crossing itself, involving steep snow/ice (crampons and ice axe mandatory)
- Moraine navigation and potential crevasse zones on the Khatling Glacier descent
- River crossings on the lower Khatling valley (potentially dangerous during high melt or post-rain)

For context on the glacier approach, see our Gangotri Glacier Trek guide.

Gangotri to Khatling: Elevation Profile at a Glance

The ascent from Vasuki Tal to the col is the most demanding single push on the trek — a gain of roughly 690 metres over steep, glaciated ground. The descent from the col to the Khatling Glacier camp loses approximately 790 metres, much of it on unstable moraine and ice. Both the ascent and descent demand full technical gear and ideally an early alpine start.

The full Auden's Col trek is best planned as a 15-day journey from Uttarkashi to Ghuttu (or onward to Tehri). Acclimatisation days are not optional on this route — they are survival strategy.

Sample 15-Day Itinerary Table

Note: Day 9 (col crossing) is the crux of the entire trek. Weather windows must be confirmed the previous evening. If conditions are poor, an additional rest day at high camp is preferable to attempting the crossing in bad visibility or high winds.

The Auden's Col trek weather is governed by snowpack, monsoon patterns, and the technical condition of the glaciers. There are two viable windows in 2026:

Pre-Monsoon: May to mid-June (Primary Window)

This is the most recommended period. Snow bridges over crevasses are still solid, days are longer, and settled weather windows are more frequent. Temperatures at the col can still drop to –10°C or below at night, so full winter sleeping gear is required. Early May may see heavy snow at higher camps — check conditions with local guides before departure.

Post-Monsoon: September to mid-October (Secondary Window)

After the monsoon retreats, the skies clear dramatically and visibility is exceptional. However, the glaciers are now more broken up after months of melt — snow bridges are less reliable, crevasses are more exposed, and temperatures drop sharply from late September. Night temperatures at the col can fall to –15°C or colder by October.

Monsoon: July–August (Avoid)

The Garhwal Himalaya receives heavy monsoon precipitation. On the Auden's Col route, this means rockfall hazard, avalanche risk on the col itself, dangerous river crossings, and near-zero visibility. No reputable guide service operates this route during the monsoon. Do not attempt the trek in July or August.

Winter: November–April (Inaccessible)

The col is buried under metres of snow and the approach roads to Gangotri close from approximately November to April/May. The trek is simply not possible in winter for the vast majority of trekkers.

Difficulty Grade: 5 / Extreme

The Auden's Col trek is classified among the hardest treks in India. It demands more than physical fitness — it requires technical mountain skills, sound judgement, and genuine high-altitude experience. This is not a challenging version of a normal trek; it is a mountaineering-adjacent objective.

Technical demands include:
- Multi-day glacier travel with crevasse hazard
- Steep snow and ice slopes requiring crampon technique
- Ice axe arrest — knowing how to use one is non-negotiable
- Moraine navigation on unstable terrain
- River crossings that can be knee-to-thigh deep
- Sustained days of 8–10 hours of walking at altitude

Minimum experience required:
- At least 3–4 prior Himalayan treks, including at least one above 4,500 m
- Prior experience on glaciated or snow terrain strongly recommended
- Completion of treks such as Hampta Pass, Kedarkantha, or similar as stepping stones — though these alone are insufficient preparation
- Prior trek above 5,000 m is highly desirable

For an overview of appropriate stepping-stone objectives, see our Best Himalayan Treks guide and our Challenging Treks in India roundup.

Training Plan for Auden's Col

Begin structured training 6–8 weeks before departure. The goal is cardiovascular endurance, load-bearing strength, and lower-body resilience.

Weeks 1–2 (Base):
- Running: 4–5 km, 4 days/week
- Stair climbing with daypack (8–10 kg): 30 minutes, 3 days/week
- Core and leg strength: 3 sessions/week

Weeks 3–4 (Build):
- Running: 6–8 km, 4 days/week
- Weekend hike with 12–15 kg pack: 4–6 hours on hilly terrain
- Increase stair sessions to 45 minutes

Weeks 5–6 (Load):
- One long hike per week: 6–8 hours with full pack
- Running: 8–10 km, include interval sessions
- Add loaded lunges, single-leg squats for stability

Weeks 7–8 (Taper):
- Reduce volume by 30%; maintain intensity
- Focus on recovery, sleep, and nutrition
- Altitude exposure: if possible, complete a 4,000 m+ trek within 6 months of attempting Auden's Col

Read our full Altitude Sickness Prevention guide before departure.

Permits for the Auden's Col trek are mandatory and must be arranged before departing Uttarkashi. Do not assume these can be obtained at the trailhead.

Required Permits

1. Gangotri National Park Entry Permit
The route begins inside Gangotri National Park. Entry fees (approximate 2026 rates —):
- Indian nationals: ~₹150 per person per day
- Foreign nationals: ~₹600 per person per day
- Camera/video fees may apply additionally

2. Forest Department Trekking Permit (Uttarkashi)
Issued by the Divisional Forest Officer (DFO), Uttarkashi. Approximate cost: ₹150–300 per person per day ().

Where to obtain: DFO Office, Uttarkashi. Some permits may be initiated through the Uttarakhand Forest Department's online portal — confirm current online availability before travel, as this changes between seasons.

3. Inner Line Permit (ILP)
The Auden's Col route does not typically require an ILP for Indian nationals as of recent seasons, but this should be verified with the DFO Uttarkashi before departure as regulations can change.

Documents Required

• Government-issued photo ID (Aadhaar, passport, or voter ID)
• Two recent passport-size photographs
• Completed permit application form (available at DFO office)
• Copy of travel insurance (increasingly required)

Allow half a day in Uttarkashi for permit formalities. Guides registered with the Forest Department can assist with the process and often expedite paperwork.

The Auden's Col trek is not a budget trail. The remoteness, duration, and technical requirements mean that costs are higher than most Himalayan treks. Below are 2026 approximate estimates.

DIY Trek (Self-Organised): ₹25,000–₹40,000 per person

Note: Hiring a guide on this route is non-negotiable — not just strongly recommended. The Uttarkashi Forest Department may require proof of a registered guide, and the technical terrain makes solo navigation genuinely life-threatening.

Organised Package: ₹45,000–₹80,000 per person

Reputable operators offering the Auden's Col trek typically include:
- All permits
- Certified guide and assistant guide
- Porters
- Tented camp setup, sleeping bags, and cooking equipment
- Group first-aid kit and oxygen cylinder
- Emergency communication device

Prices vary with group size (smaller groups cost more per head) and the quality of equipment provided. Always verify that the operator holds valid certification from the Indian Mountaineering Foundation (IMF) or the Nehru Institute of Mountaineering (NIM), Uttarkashi.

Gear selection can make the difference between a successful crossing and an emergency evacuation. Do not cut corners. See our full Trekking Gear Checklist for detailed guidance.

Technical Gear

• Crampons (12-point steel; compatible with your boots) — non-negotiable
• Ice axe (60–65 cm for most trekkers) — non-negotiable
• Climbing harness (for roped travel on glacier sections)
• Helmet (for sections below seracs or on steep ice)
• Trekking poles (2 × collapsible, with snow baskets)
• Rope (your guide will typically carry team rope; confirm in advance)

Clothing (Layering System)

• Moisture-wicking thermal base layer (top and bottom) × 2
• Mid-layer fleece or softshell
• Down jacket (700+ fill, rated to –15°C)
• Waterproof and windproof hard shell jacket and trousers
• High-altitude insulated gloves + liner gloves
• Balaclava or neck gaiter
• Sun hat and glacier goggles (UV400+ or glacier-rated)
• Buff/neck gaiter × 2

Footwear

• Stiff-soled mountaineering boots or double-layer boots compatible with crampons
• Gaiters (waterproof, knee-height)
• Camp shoes/sandals
• Wool or synthetic trekking socks × 4–5 pairs

Navigation & Communication

• Topographic map of the Gangotri–Khatling region
• Compass
• GPS device (pre-loaded with route waypoints)
• Satellite communicator (e.g., Garmin inReach) — strongly recommended

Safety & Health

• Personal first-aid kit (blister care, wound closure, bandages)
• Pulse oximeter — mandatory
• Diamox (Acetazolamide) — carry after consulting your doctor; used for AMS prevention
• Dexamethasone (emergency AMS treatment — carry under medical guidance)
• Ibuprofen, antihistamine, antidiarrheal medications
• Water purification tablets or filter
• Sunscreen SPF 50+ and UV-protective lip balm

Documents

• All permits (original + photocopies)
• Government-issued ID (original)
• Travel insurance documents (printed and digital)
• Emergency contact card

Food

• High-energy snacks: nuts, dried fruit, energy bars, dark chocolate
• Emergency rations: sufficient for 2 extra days beyond planned itinerary
• Electrolyte sachets

What can be rented in Uttarkashi/Gangotri: Crampons, ice axes, sleeping bags, trekking poles, and basic tents are available for rent in Uttarkashi town. Quality varies — inspect rental gear thoroughly before accepting.

The Auden's Col trek demands a conservative, safety-first mindset at every stage. Self-rescue in the event of a serious incident is extremely difficult — the nearest road can be two or more days' walk from the glacier.

Acute Mountain Sickness (AMS)

Recognise the symptoms: persistent headache, nausea, dizziness, loss of appetite, fatigue beyond what exertion explains, and confusion. The golden rule: never ascend with symptoms. If symptoms worsen or do not improve with rest and hydration at the same altitude, descend immediately. Carry a pulse oximeter and check SpO₂ readings regularly above 4,000 m. Read our Altitude Sickness Prevention guide before departure.

Glacier Safety

• Always travel roped up in crevasse zones — your guide will direct rope protocols
• Probe suspicious snow bridges before crossing
• Avoid travelling on glaciers after midday when snow softens and bridges weaken
• Learn and practise self-arrest with your ice axe before the trek

River Crossings

• Attempt crossings early in the day when glacial meltwater levels are lowest
• Unbuckle your pack waist belt before crossing so you can shed the pack if you fall
• Use trekking poles for stability; cross at wider, shallower sections
• Never cross alone

Weather Windows

• Monitor forecasts using resources like the India Meteorological Department (IMD) or mountain-specific apps; confirm conditions with your guide each evening
• If a weather window closes on the col crossing day, wait — do not push through whiteout or high winds

Emergency Contacts

• SDRF (State Disaster Response Force) Uttarkashi: +91-1374-222900 (approximate —)
• Uttarkashi District Hospital: Located in Uttarkashi town — nearest medical facility for serious cases
• Helicopter evacuation: Feasible from certain lower valley points; requires coordination with SDRF and your travel insurer

Travel insurance with helicopter evacuation cover is mandatory for this trek. Ensure your policy covers trekking above 5,000 m and helicopter rescue — many standard travel policies do not.

Never trek Auden's Col solo. A certified, locally registered guide is not just recommended — it is a safety necessity on this terrain.