Tsum Valley
OSM hiking route Tsum Valley, Nepal (38.11 km line). out-and-back; one-way 38.11 km, round-trip 76.21 km in prose. Permits are the headline (official NTB/NTNC 2026-09-21). Vertical figures from the Wave N GLO-30 resample.
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Distance 38.11 km Reported · Ascent provisional (DEM sample) · High point provisional (DEM sample) · 12d · SAC T3 · Challenging (OSM mountain_hiking, OSM trail_visibility intermediate)
Cite this record
The Hiking World, Tsum Valley, read 2026-09-21, https://www.thehikingworld.com/trails/tsum-valley
How we verify · last checked 2026-09-21
Byline
- The Hiking World editorial team · author
Figures marked provisional are seed data and still need verification. Source and last-checked date sit under each cited value.
Forecast at page generation, 2026-11-04T22:08:44.184Z
Representative point on Tsum Valley: 28.483°, 85.022°, about 3862 m. A forecast, not a trail-surface reading.
At generation: -8°C, Clear.
- 2026-11-05 Mainly clear, -8–5°C
- 2026-11-06 Mainly clear, -9–4°C
- 2026-11-07 Light snow, -9–4°C, 0 mm
Source Open-Meteo. Mountain weather changes with elevation and aspect.
Life-safety notices on this page come from the issuer.
Sourced record
Verified and reported stay in separate blocks. A section with no source is left out. How we verify.
Reported
Named secondary source, including OpenStreetMap. Not a verified official figure.
Distance and elevation
The stored line is OpenStreetMap relation 11074323, 38.11 km. That is the Facts distance for this record, not a second measurement.
OpenStreetMap contributors (ODbL), relation 11074323 · source · checked 2026-09-21
Maps
Geometry © OpenStreetMap contributors, ODbL, relation 11074323.
OpenStreetMap contributors (ODbL), relation 11074323 · source · checked 2026-09-21
Map data © OpenStreetMap contributors, ODbL.
Altitude weather delta
High 3,862 m minus low 1,626 m is 2,236 m of relief on this record. A standard tropospheric lapse of 6.5 °C per 1,000 m implies about 14.5 °C cooler at the high point than the valley, all else equal.
That is a model (International Standard Atmosphere environmental lapse), not a forecast and not a trail-closure. Wind, snow, and storms stay in Hazards.
derived:lapse-rate · read 2026-09-10 · provisionalISA 6.5 °C / 1,000 m · wikipedia.org · 2026-09-10
Map loads when this section is on screen.
GeoJSONLine download is the stored OSM geometry, simplified. It is not a surveyed GPS track. GPX · GeoJSON
Catalog entry
Challenging (OSM mountain_hiking, OSM trail_visibility intermediate)
- SAC T3
- Demanding mountain hiking. Exposed sections possible; hands may be needed for balance.
- YDS Class 2
- Class 2. Simple scrambling, occasional use of hands.
Stored distance is 38.11 km. The chart axis follows the DEM sample (34.34 km), not the published line length.
Ingested from OpenStreetMap relation 11074323 (ODbL). The mapped line is that geometry. Distance, ascent, descent, and high/low points are the Wave N evidence-sheet figures (adjudicated 2026-09-21). Permits are official-sourced; geometry stays OSM-provisional. Water was not mapped to named WaterSource points.
OSM 2D length is 38.11 km (OSM line, ODbL, relation 11074323, lastVerified 2026-09-21). Provisional — OSM line, no official kilometre. Out-and-back: the published figure is the one-way 38.11 km; round-trip is about 76.21 km in prose only. ⚠ secondary: operator itineraries cite about 130 km. Cited km is not this figure. Out-and-back: publish one-way. Often combined with manaslu-circuit — relate-not-merge.
typicalDays 12 is the published typical window (operator, secondary), not a figure and not implied by the OSM kilometre.
High 3,862 m is Copernicus GLO-30 (lastVerified 2026-09-21), verified on the walked OSM line. Low 1,626 m is the same DEM resample, verified. Ascent 3,356 m / descent 1,173 m remain provisional DEM. Landmark Mu Gompa ~3,700 m (Wikipedia; DEM high 3,862 m is the walked line).
Tsum Valley restricted area. NTB trekking-permit table (https://ntb.gov.np/en/plan-your-trip/before-you-come/trekking-permit, checked 2026-09-21): September–November USD 40 per person / week then USD 7 per person / day beyond one week; December–August USD 30 / week. Restricted area: Department of Immigration RAP is issued through a registered agency, not self-issued; minimum two trekkers, solo prohibited (https://ntb.gov.np/en/plan-your-trip/before-you-come/trekking-permit, checked 2026-09-21). MCAP NPR 3,000 foreign / NPR 1,000 SAARC (https://epermit.ntnc.org.np/, checked 2026-09-21). Do not merge with manaslu-circuit (different RAP band).
Water
No water sources recorded.
Permits & fees
Conditions, fees and rules change. Confirm with the issuer and local authorities before you go. This is a reference, not a substitute for local advice. Terms
- Permit
- Restricted Area Permit (Tsum Valley) + MCAP
Permits and fees
We are not the issuer. Fees and rules change — confirm with the issuer before you pay. Issuer page.
| Permit | Cost | Quota / restriction | Issuer | Source | Checked |
|---|---|---|---|---|---|
| Restricted Area Permit (Tsum Valley) + MCAPUnverified — not officially sourced | Not recorded | — | Not recorded | Issuer page | Unverified |
Hazards
- Altitude / AMS: GLO-30 high 3,862 m on this line (Mu Gompa ~3,700 m (Wikipedia; DEM high 3,862 m is the walked line)). This is a high-altitude trek, not a casual hike.
- Restricted-area RAP is agency-issued, not self-issued (https://ntb.gov.np/en/plan-your-trip/before-you-come/trekking-permit, checked 2026-09-21). Minimum two trekkers; solo prohibited.
- Related records manaslu-circuit share geography — relate-not-merge.
Getting there
Sourced legs to the Machha Khola approaches base start station — where this trail record begins. This is not a route planner: durations are approximate and marked provisional until an official transport page confirms them.
Road · Kathmandu (KTM) → Machha Khola / Arughat
Road via Gorkha toward the published Machha Khola / Arughat starts, then the Tsum side valley. RAP is agency-issued in Kathmandu (https://ntb.gov.np/en/plan-your-trip/before-you-come/trekking-permit, checked 2026-09-21). Relate-not-merge with manaslu-circuit.
ntb.gov.np · read 2026-09-21 · provisional
Restricted area: registered agency, minimum two trekkers. Tsum RAP band is not the Manaslu RAP band.
Plan from your location
Type a city, then pick a match. These links open external search tools — they do not fetch fares or timetables.
Getting there car-free
- OSM line start: car-free flag unknown.
- OSM line end: car-free flag unknown.
Trailheads
- OSM line start car-free: unknown
- OSM line end car-free: unknown
Questions
Do I need a permit for Tsum Valley?
A permit is listed as required for Tsum Valley: Restricted Area Permit (Tsum Valley) + MCAP. Status: Unverified. This desk does not treat that as an official ruling.
When is the best time to hike Tsum Valley?
On this record the best season is: Mar–May and Sep–Nov (NTB / NTNC walking season, checked 2026-09-21).
How difficult is Tsum Valley?
Tsum Valley is graded OSM sac_scale: mountain_hiking · SAC T3 · YDS 2. A sourced hazard on this record: Altitude / AMS: GLO-30 high 3,862 m on this line (Mu Gompa ~3,700 m (Wikipedia; DEM high 3,862 m is the walked line)). This is a high-altitude trek, not a casual hike.
How long is Tsum Valley?
The length on this record is 38.11 km (reported). Published figures may differ. See /guides/how-long-is-the-trail
How do I get to Tsum Valley?
The record’s base start is Machha Khola approaches. A primary gateway on the record is Tribhuvan International Airport (KTM). Trailhead transit notes are not included in this public FAQ.
Related trails
- Manaslu Circuit · Manaslu
- Annapurna Base Camp · Nepal
- Annapurna Circuit · Nepal
- Dudh Pokhari Lake · Nepal
- Everest Base Camp · Nepal
- Everest Three Passes · Nepal