If you’ve done the classic treks and you’re looking for something far more remote, the Teri La Pass Trek might be the answer. This is one of Nepal’s most demanding high-altitude routes a multi-week expedition connecting two of the country’s most restricted regions, Nar-Phu Valley and Upper Mustang, over a pass that sits above 5,500 meters.
It’s not a trek for beginners. It’s a trek for experienced high-altitude trekkers who want genuine remoteness, serious camping, and views that very few people ever see. Here’s everything you need to know.
Teri La Pass Trek: Photo by Sagar Gnawali
What Is the Teri La Pass Trek
The Teri La Pass Trek is a strenuous 22- to 27-day expedition through Nepal’s northern highlands, linking the secluded Nar-Phu Valley with the walled kingdom of Upper Mustang. The trek’s high point and its namesake is Teri La Pass, sitting at 5,595 meters (18,356 ft).
This isn’t a teahouse-only trek. Lower villages have lodges, but the high-altitude and remote stretches require full wilderness camping, meaning tents, a support crew, and proper expedition logistics. It’s considered one of the more serious adventure treks in Nepal, and it’s built for trekkers who already have solid high-altitude experience under their belt.
Trek Overview
| Duration | 22–27 days |
| Max Altitude | 5,595m (Teri La Pass) |
| Difficulty | Strenuous / Adventure High Pass |
| Accommodation | Lodges in lower villages; tent camping at altitude and in remote sections |
| Best Seasons | April–June and October–November |
Route Highlights
Nar-Phu Valley. The trek begins in Koto and heads into the secluded, Tibetan-influenced villages of Meta and Naar a region that remained closed to outside trekkers for decades and still sees far fewer visitors than nearby Manang.
Teri La Pass. The trek’s centerpiece. From Teri La Base Camp at around 5,100m, the route climbs past the Lapse Khola, crossing moraine and snow before reaching the pass itself at 5,595m. This is the technical and physical high point of the trip.
Upper Mustang. After the pass, the trail descends into Upper Mustang’s stark, high-desert landscape passing through Pasphu Khola, Yakpa, Tangge, and Yara before reaching Lo Manthang, the walled former capital of the Kingdom of Lo.
Mountain Views. Throughout the trek, expect sweeping 360-degree panoramas of the Damodar Himal, Purung Himal, and the wider Annapurna and Dhaulagiri ranges a mix of high Himalayan peaks and Mustang’s dramatic desert terrain that few other treks combine in a single route.
Required Permits
Because the route passes through two restricted areas, you’ll need several permits arranged in advance:
- Annapurna Conservation Area Project (ACAP) Permit
- Nar Phu Valley Restricted Area Permit
- Upper Mustang Restricted Area Permit
Nepal’s government regulations require this trek to be booked through a registered local trekking agency, and a minimum of two trekkers is required to obtain the restricted-area permits this isn’t a route you can arrange solo or independently.
Is the Teri La Pass Trek Right for You
This trek suits experienced trekkers who:
- Have prior high-altitude trekking experience, ideally including at least one pass above 5,000m
- Are comfortable with extended wilderness camping, not just teahouse stays
- Want genuine remoteness this route sees a fraction of the traffic of Nar Phu or Upper Mustang on their own
- Have 3–4 weeks available, since the full route runs 22–27 days
It’s not the trek to start with if you’re new to high-altitude trekking. The combination of altitude, distance, and remote camping logistics makes this one of Nepal’s more serious undertakings.
Teri La Pass Treks
Frequently Asked Questions
How high is Teri La Pass?
Teri La Pass sits at 5,595 meters (18,356 ft), making it one of the higher trekking passes in Nepal above both Thorong La (5,416m) and Cho La (5,420m).
What is the hardest trek in Nepal?
There’s no single official answer, but treks like Teri La Pass, the Kanchenjunga Circuit, and the Everest Three Passes Trek are consistently ranked among Nepal’s most demanding due to their altitude, remoteness, and camping-heavy logistics. Teri La stands out for combining serious altitude with a long, multi-week itinerary through two restricted regions.
What is the Three Pass Trek in Nepal?
The Three Passes Trek is a well-known route in the Everest region that crosses three high passes Kongma La (5,535m), Cho La (5,420m), and Renjo La (5,360m) usually over 18–22 days. It’s a different (and more established) route from Teri La Pass, though both fall into Nepal’s “serious high-altitude trek” category.
What time of year should I go?
The two best windows are April–June and October–November, when weather is more stable and visibility is best for mountain views.
Do I need a trekking partner or group?
Yes Nepal’s restricted-area permit rules for this route require a minimum of two trekkers, and the trek must be booked through a government-registered trekking agency.
How much prior high-altitude experience do I need?
While there’s no official minimum, operators generally recommend having completed at least one high-altitude trek above 5,000m before attempting Teri La, given the combination of altitude, distance, and remote camping conditions.
Final Thoughts
The Teri La Pass Trek isn’t a trek most people will do and that’s exactly the point. It links two of Nepal’s most restricted, culturally rich regions over one of the country’s higher passes, through landscapes that shift from Tibetan-influenced valleys to Mustang’s high desert. For experienced trekkers looking for their next serious challenge beyond the classic circuits, it’s hard to find a route in Nepal that offers more remoteness, more variety, or more reward.