Runoff by the Cruzet Tunnel

Overseen by Cladius Crozet, the crossing was accomplished by building four tunnels, including the 4,273-foot (1,302 m) Blue Ridge Tunnel near the top of the pass. With construction proceeding from either side a decade before the invention of dynamite, the complex was dug though solid granite with only hand drills and black powder. The tunnel was less than 6 inches (150 mm) off perfect alignment when it was holed through on Christmas Day 1856. When completed, the Blue Ridge Tunnel was the longest in the United States and one of the longest tunnels in the world, a remarkable feat of engineering. It opened to rail traffic in April 1858, and was considered to be one of the engineering wonders of the modern world. source: Jameson, Lynn J. "Ain't no mountain wide enough" The Hook. Charlottesville, VA. 2002-11-21

Captured

Apr 13, 2013, 05:11 PM UTC

EXIF

Camera: Canon EOS 5D Mark II
Lens: EF24-105mm f/4L IS USM
Focal length: 24mm
Aperture: f/16
Shutter: 5s
ISO: 100

Dimensions

2496 × 3744