The Big Obstacle In August 1865 early snows defeated the Central Pacific's initial attempt to begin work on Tunnel No. 6, the Summit Tunnel. The grand engineering feat of the Sierra Nevada would ...

It can be all too easy to heap accolades upon Oregon’s most beautiful places, but this time we really, seriously mean it. The ...

Tunnel No. 3 is believed to have housed the ... Constructed between 1944 and 1945, the underground complex features five tunnels totaling roughly 1 kilometer in length. It was believed to have ...