State officials finalized a landmark agreement with Union Pacific Railroad that modernizes a century-old lease for the Moffat ...

In the 1930s, workers bored a 13-mile tunnel beneath Mt. San Jacinto. Here's a look inside the engineering feat that carries ...

Union Pacific is generally on the hook for the tunnel, while the state would pay a proportionate share of operating and maintenance costs for the UP-owned tracks along the mountain passenger rail ...

The Wyoming Department of Transportation said on social media that geologists and bridge engineers with its team were "en route to assess the tunnel infrastructure." The crash happened around 11: ...

The ore veins looked rich, but miles of costly road would have been needed to get the ore around the mountain to a shipping point. Lacking capital, William Schmidt decided to tunnel through the ...

The only problem: There was a mountain in the way ... by blasting and removing the muck and excavating the top and bottom of the tunnel. However, this tunnel was 1.7 miles underneath the ...

It's unlike anything else in the area: A quarter-mile walkable tunnel carved into an enormous mountain that's an engineering wonder, a failure and a little bit spooky. Even if the sun's shining ...

Near the southern end of Skyline Drive, considered Virginia's best fall drive, the Blue Ridge Tunnel is a 4,273-foot-long passage that traverses Afton Mountain. The tunnel was designed by French ...

The 13-mile-long San Jacinto Tunnel was bored through the mountain in the 1930s by a crew ... mad rush and filled the shaft to the top. Miners scrambled up the 800-foot ladder to the surface ...

Scott Reierson, an operations and maintenance supervisor for the Metropolitan Water District, leads a group on a tour, walking through a 16-foot-diameter tunnel toward the west portal of the ...