Curated OER
Summit Tunnel Map
This site offers an abstract from Van Nostrand's Eclectic Engineering Magazine from 1870 from a paper by John R. Gilliss. A comprehensive look at the tunnels built along the route of the Central Pacific Railroad and the Union Pacific...
Curated OER
Tunnel No. 4 (#38 Visible)
This site offers an abstract from Van Nostrand's Eclectic Engineering Magazine from 1870 from a paper by John R. Gilliss. A comprehensive look at the tunnels built along the route of the Central Pacific Railroad and the Union Pacific...