Contact: Joshua A. Chamot
jchamot@nsf.gov
703-292-7730
National Science Foundation

Lasers, Software and the Devil's Slide (2 of 2)

Caption: Close-up image of the tunnel roof showing a gVT measurement location. The arrow is a vector perpendicular to a surface that marks a discontinuity between rock layers. The orientation of the arrow in space gives the azimuth and slope of the surface.

Credit: Jeramy Decker, Kiewit Corp

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Related news release: Lasers, software and the Devil's Slide