A790940 U12G MINEBACK TO CAVITY C SMITH(Project Engineer) DEC 12 79EG&G/NTS PHOTO LAB Publication Date: 12/12/1979 G-TUNNEL; MARKED; MARKINGS; MINEBACK; MINEBACK TO CAVITY; MINES, LAND (WEAPON); MINES, UNDERGROUND; NEVADA; NEVADA TEST SITE; NTS; NUCLEAR ENERGY TECHNOLOGY; SMITH, C.; TEST SITES; TUNNELS; TUNNELS BY USAGE; UGT; UNDERGROUND TESTING 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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