シンプロントンネル
Although the Jura-Simplon Railway was a railway company for only 13 years, it helped break the impasse over the building of the Simplon Tunnel from Brig to Iselle in Italy after decades of effort by Bern and Romandy. Studies prepared to support the construction of the tunnel had already been submitted by the SOS to the federal and cantonal authorities. In 1891, JS, as a new entrepreneurial railway company, presented the Federal Council with a definitive project for the Simplon Tunnel.