A772098 U12G HYDRA FRAC WC VOLLENDORF(Project Engineer) NOV 3 77EG&G/NTS PHOTO LAB Publication Date: 11/3/1977 EDGERTON, GERMESHAUSEN & GRIER; EG&G; G-TUNNEL; HEAD LAMPS; HYDRA FRAC; HYDRAULIC FRACTURE; MARKED; NEVADA; NEVADA TEST SITE; NTS; NUCLEAR ENERGY TECHNOLOGY; PICKAXES; TAPE MEASURES; TEST SITES; TUNNELS; TUNNELS BY USAGE; UGT; UNDERGROUND TESTING; VOLLENDORF, BILL historical images. 1972 - 2012. Department of Energy. National Nuclear Security Administration. Photographs Related to Nuclear Weapons Testing at the Nevada Test Site.

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Photo credit: © NB/DeptComm / Alamy / Afripics
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