Sources

• Distances, the line of the road and fuel pumps: © OpenStreetMap contributors, Open Database Licence. Routes worked out with the Open Source Routing Machine.
• Heights: NASA Shuttle Radar Topography Mission, public domain, served by Open Topo Data.
• Mussoorie Travel Guide: Best Time, How to Reach & Things to Do

  waytoindia.com · Tour company's page · dated June 2026

• Dhanaulti

  en.wikipedia.org · Encyclopedia

• Online Registration Mandatory Now For Visiting Mussoorie: Step Mooted To Control Traffic

  etvbharat.com · News report · dated 31 July 2025

• Mussoorie Introduces Mandatory Tourist Registration From August 1

  outlooktraveller.com · News report · dated 8 July 2025

• Chakrata

  en.wikipedia.org · Encyclopedia

• Chakrata Travel Guide 2026: The Best Offbeat Hill Station in Uttarakhand

  exploreuttarakhandnow.com · Published guide · dated 25 March 2026

• Uttarakhand Begins Green Cess Collection From Out-of-State Vehicles, Faces Initial Technical Glitches

  etvbharat.com · News report · dated 14 January 2026

• Green cess to be imposed on vehicles entering Uttarakhand; EVs, bikes exempted

  tribuneindia.com · News report · dated 7 December 2024

• Mussoorie registration portal, Uttarakhand Tourism Development Board

  registrationandtouristcare.uk.gov.in · Official page

• Chakrata Cantonment Board

  chakrata.cantt.gov.in · Official page

• IndianOil locator: Abhyuday Filling Station, suwakholai

  locator.iocl.com · Official page

• HP locator: Kempty Filling Station, Siya Kempti

  petrolpump.hpretail.in · Official page

• HP locator: Ms Prem Narayan Filling Station, Koruwa

  petrolpump.hpretail.in · Official page

A gap is not a fact. It means we looked and found no source.

• No highway numbers sourced for the Dehradun to Mussoorie, Mussoorie to Dhanaulti or Kalsi to Chakrata roads.
• Chakrata: no official page states the rule for foreign citizens. Sources disagree on who grants permission (the District Magistrate in Dehradun or the military command). The cantonment board website says nothing on visitors.
• No source found for any gate timings on the Kalsi to Chakrata road.
• Mussoorie registration: whether it applies to motorcycles, and whether it runs all year or only in peak periods, was not confirmed. The official Mussoorie page opened is for hotel owners; the guest registration page was not opened.
• Mussoorie eco tax and the Mall Road vehicle ban are reported by one operator guide; no municipal notice found. Amounts left out.
• No source found for rules or fees at Kempty Falls.
• Uttarakhand green cess: the exemption for two-wheelers is reported by two news outlets; no Transport Department order or official page was found.
• No rider videos collected; the search budget ran out before this route.