The Hiking World

Har Ki Dun

Curated schematic — not walking distance. Pin-to-pin OSM named-waypoint line Sankri → Taluka → Osla → Har Ki Dun along Supin / Harkidun Gad. No asserted itinerary kilometre. High 3,566 m is the Wikipedia valley landmark. Seven days (GMVN).

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 3,566 m minus low 1,930 m is 1,636 m of relief on this record. A standard tropospheric lapse of 6.5 °C per 1,000 m implies about 10.6 °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...
Facts31.078, 78.184
Distance25 km*
curated schematic (OSM named nodes; not walking distance) · 2026-09-18 · editorial · provisional
Ascent+1,565 m*
Copernicus GLO-30 (4 schematic pins, not a walking profile) · 2026-09-18 · dem · provisional
Descent0 m*
Copernicus GLO-30 (4 schematic pins, one-way; not a walking profile) · 2026-09-18 · dem · provisional
High point3,566 m*
Wikipedia (Har Ki Doon valley, CC BY-SA) · 2026-09-18 · editorial · provisional
Low point1,930 m*
Copernicus GLO-30 (Sankri pin) · 2026-09-18 · dem · provisional
Routeout-and-back
Days7
Seasonunverified
GradeSAC T2 (mapped — no official SAC grade) · YDS 1

Editorial v1 · Provisional catalog

DifficultyUngraded — schematic, no OSM sac_scale line
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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Curated schematic from named OpenStreetMap nodes (ODbL). The line is pin-to-pin, not a surveyed walking path. 2-D length is labelled schematic — not walking distance. Do not treat it as an itinerary kilometre. Ascent and descent are Copernicus GLO-30 samples at those four pins only, not a walking profile, and remain provisional.

No continuous Har Ki Dun hiking relation: Grok geometry lane returned decision=drop (Osla→Har Ki Dun ~3.2 km OSM gap). Relation 11245198 is Sankri–Chitkul over Borasu Pass (UltraJourneys tag=BRS) and is excluded. Pins: Sankri (342115934) → Taluka (5247931586) → Osla (2382584881) → Har Ki Dun locality (7690095605). Gangad did not resolve and was not invented. The stored 25 km is pin-to-pin schematic (one-way; return retraces). osmRelationId is unset. Never graduate without a connected OSM line closing the Osla→HKD gap. Hemkund's OSM tag=HKD is an UltraJourneys shield on a different trek, not this valley.

typicalDays 7 is GMVN (https://gmvnonline.com/, accessed 2026-09-18).

High 3,566 m is Wikipedia Har Ki Doon valley (https://en.wikipedia.org/wiki/Har_Ki_Doon_valley, accessed 2026-09-18, CC BY-SA) — a cited landmark, not a DEM line max. Copernicus GLO-30 at the four pins tops at 3,495 m (lastVerified 2026-09-18). Low 1,930 m is Copernicus GLO-30 at the Sankri pin (lastVerified 2026-09-18), in range of the sheet's ~1,920 m roadhead note, still provisional. Ascent 1,565 m / descent 0 m are pin-sample DEM on the one-way schematic, not a walking profile.

Permit is Unverified (not sourced from an official Uttarakhand Forest / Govind NP page; evidence sheet 2026-09-18). A Govind Pashu Vihar NP & WLS entry is widely described; do not assert it until that page is cited. Season is unknown. Water was not mapped to named WaterSource points.

Water

No water sources recorded.

Permits & fees

Permit status is unverified. Permit was not sourced from an official Uttarakhand Forest / Govind NP page this pass (evidence sheet Unverified, 2026-09-18). A Govind Pashu Vihar NP & WLS entry is widely described; do not assert it until that page is cited. Confirm officially before travel. OSM relation 11245198 (Borasu Pass / tag=BRS) is a different line and is excluded.

Getting there

No sourced gateway chain yet.

Trailheads

  • Sankri (schematic start) car-free: unknown
  • Har Ki Dun (schematic end) car-free: unknown

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Hazards

    Questions

    Do I need a permit for Har Ki Dun?

    Permit status is unverified for Har Ki Dun. This desk does not assert that a walking permit is or is not required.

    How difficult is Har Ki Dun?

    Har Ki Dun is graded SAC T2 (mapped — no official SAC grade) · YDS 1.

    How long is Har Ki Dun?

    This figure is 25 km (provisional): a schematic straight-line estimate between waypoints — not a measured walking distance; published figures are the better guide. See /guides/how-long-is-the-trail

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