English: Outline of the Pianotondo and Travi spiral tunnels between Lavorgo station and former Giornico station (Giornico vecchio) on the southern ramp to the Gotthard tunnel from km 112 to 1914, book (or prior source predating the publication of volume 5 of Röll's encyclopedia in 1914) 51 PianotondoAndTraviSpiralTunnelsOnSouthernRampOfGotthardbahn

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Photo credit: © History and Art Collection / Alamy / Afripics
License: Licensed
Model Released: No

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