Diagram of the exploratory system for the Piora Basin
Diagram of the exploratory system for the Piora Basin, 2010 (AlpTransit Gotthard Ltd)
An event offers an insight into the history of the NRLA through texts, photos, films and infographics. This document is part of the following events.
The Piora Basin, with its sugar-grain rock, threatens to endanger construction of the Gotthard Base Tunnel.