The Hiking World

Lalung to Sarchu

OSM hiking traverse Lalung to Sarchu, Himachal Pradesh (49.49 km line). Village-to-village / pass path; no cited itinerary. Vertical figures from the Wave I-2 GLO-30 resample. Days unknown.

Byline

  • The Hiking World editorial · author

    Desk byline for seed records. Named surveying editors replace this once a trail is verified.

Figures marked provisional are seed data and still need verification. Source and last-checked date sit under each cited value.

Altitude weather delta

High 5,549 m minus low 4,007 m is 1,542 m of relief on this record. A standard tropospheric lapse of 6.5 °C per 1,000 m implies about 10 °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 · 2026-09-10 · provisional

ISA 6.5 °C / 1,000 m · wikipedia.org · 2026-09-10

loading map...
Facts33.125, 77.218
Distance49.49 km*
OSM line (ODbL, rel 11230787) · 2026-09-19 · osm · provisional
Ascent+3,139 m*
Copernicus GLO-30 (30 m resample) · 2026-09-19 · dem · provisional
Descent2,858 m*
Copernicus GLO-30 (30 m resample) · 2026-09-19 · dem · provisional
High point5,549 m*
Copernicus GLO-30 · 2026-09-19 · dem · provisional
Low point4,007 m
Copernicus GLO-30 · 2026-09-19 · dem
Routepoint-to-point
Days4
Seasonunverified
GradeSAC T2 (mapped — no official SAC grade) · YDS 1

Editorial v1 · Provisional catalog

DifficultyUngraded — member ways untagged
SAC T2 (mapped — no official SAC grade)
Mountain hiking. Continuous trail, some steep ground, sure-footedness helpful.
YDS Class 1
Class 1. Walking on an established path; low fall risk.

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Ingested from OpenStreetMap relation 11230787 (ODbL). The mapped line is that geometry. Distance, ascent, descent, and high/low points are the Wave I-2 evidence-sheet figures (adjudicated 2026-09-19). Season and permit were not sourced. Member ways are untagged for sac_scale; SAC stays ungraded.

OSM 2D length is 49.49 km (OSM line, ODbL, relation 11230787, lastVerified 2026-09-19). Provisional — OSM line, no cited itinerary. Provisional-listed traverse (Lahaul–Sarchu). Ingest stored assembly 49.5 km. The published DataPoint is the evidence-sheet 49.49 km for relation 11230787.

typicalDays 4 is Math.round(lengthKm/12), a placeholder. Days are unknown on the evidence sheet and stay provisional.

High 5,549 m is Copernicus GLO-30 (lastVerified 2026-09-19). Low 4,007 m is the same DEM resample, verified. Ascent 3,139 m / descent 2,858 m remain provisional DEM.

Permit is Unverified (not sourced from OSM or an official tariff; evidence sheet 2026-09-19). Confirm officially before travel. Season is unknown. OSM water context (ODbL, lastVerified 2026-09-19), not a potability or reliability claim and not mapped to WaterSource points (no honest atFraction): +6 springs.

Water

No water sources recorded.

Permits & fees

Permit status is unverified. Permit was not sourced from OSM or an official tariff this pass (evidence sheet Unverified, 2026-09-19). Confirm officially before travel.

Getting there

No sourced gateway chain yet.

Trailheads

  • OSM line start (Lalung) car-free: unknown
  • OSM line end (Sarchu) car-free: unknown

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Hazards

    Questions

    Do I need a permit for Lalung to Sarchu?

    Permit status is unverified for Lalung to Sarchu. This desk does not assert that a walking permit is or is not required.

    How difficult is Lalung to Sarchu?

    Lalung to Sarchu is graded SAC T2 (mapped — no official SAC grade) · YDS 1.

    How long is Lalung to Sarchu?

    The length on this record is 49.49 km (provisional). Published figures may differ. See /guides/how-long-is-the-trail

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