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.
• National Highway 61 (India)

  en.wikipedia.org · Encyclopedia

• Tamhini Ghat

  en.wikipedia.org · Encyclopedia

• Mahabaleshwar

  en.wikipedia.org · Encyclopedia

• Mumbai-Pune Expressway

  en.wikipedia.org · Encyclopedia

• Frequently Asked Questions on Atal Bihari Vajpayee Sewri Nhava Sheva Atal Setu

  mmrda.maharashtra.gov.in · Official page

• Mumbai Trans Harbour Link

  en.wikipedia.org · Encyclopedia

• After Lonavala waterfall tragedy, prohibitory orders imposed at picnic spots in Maharashtra's Pune

  tribuneindia.com · News report · dated 3 July 2024

• Monsoon: Pune Collector bans entry to Lonavala, Tamhini ghat, Bhushi, Mulshi dam and other places

  punekarnews.in · News report · dated 7 June 2020

• Pune District Collector Enforces Strict Tourism Ban After 6 PM in Lonavala and Mulshi Following Tragic Incident

  mypunepulse.com · News report · dated 1 July 2024

• Good News for Punekars: Ban on Tourist Places Lifted from Lonavla to Tamhini in District

  freepressjournal.in · News report · dated 1 August 2024

• Pune: Entry Curbs Imposed At Bhimashankar, Malshej Ghat and Other Tourist Spots Amid Heavy Rain

  mypunepulse.com · News report · dated 8 July 2026

• Tourists Raise Questions Over Toll Collection On Mahabaleshwar Route Via Panchgani

  mypunepulse.com · News report · dated 20 May 2026

• Ban Private Vehicles Of Tourists In Mahabaleshwar, Panchgani: Municipal Council To Government

  punekarnews.in · News report · dated 24 June 2022

• Monsoon Trekking Rules 2026: Banned Waterfalls, Dams and Fort Treks by State

  stayvista.com · Published guide

• 2024 Lonavala waterfall tragedy

  en.wikipedia.org · Encyclopedia

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

• No official page was read for the two-wheeler rule on the Mumbai to Pune Expressway; the Maharashtra State Road Development Corporation site failed with an expired certificate.
• Whether two-wheelers may use the short ghat stretch near Khandala where the old highway joins the expressway, and how the May 2026 bypass changed this, was not sourced.
• The text of the 2026 Pune district order for Lonavala was not found; a travel company gives its dates as 6 to 31 July 2026.
• No source found for a monsoon closure order at Mahabaleshwar. No official page was found for the entry and pollution tax, or for whether two-wheelers pay it, so amounts are left out.
• No source found for the altitude of Tamhini Ghat or Malshej Ghat, or for fog on the ghats.
• Usual number of riding days: no source found.
• The highway value combines Wikipedia pages for National Highway 48 and 61; only one is cited.
• Videos: the pages give upload dates, not filming dates, so 'filmed' is filled only where the title names a date. Uploads, in order: 2025-11, 2021-07.