Simplon Tunnel Map

Heres a map of the Simplon Pass and Tunnel, from 1906.  Its a little dated, but.... I can't imagine that the course of the tunnel, or the placement of the mountains changed much between 1906 and the 1920s.... so... I'm going with it.

Come to think of it, I dont think the course of the tunnel, or the placement of the mountains has changed much from 1906 to 2013....  ;)