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Home > Library > Publications > NTS 50th Anniversary Newsletter

Frenchman Flat

Photo - Wooden bleachers at Yucca FlatsBetween January 27, 1951 and March 25, 1968 fourteen atmospheric and five underground tests were detonated at Frenchman Flat. The 320-square-kilometer (123-square-mile) dry lake bed is one of three major closed desert valley basins at the Nevada Test Site, the others being Yucca and Jackass Flats.

From 1953 to 1958, reinforced structures were exposed to of nuclear blasts and accompanying overpressures. Among the items exposed to the blasts were French-and-German-designed shelters, a Mosler safe, a railroad bridge, butler buildings (hangers), a man-made pine tree forest planted in concrete blocks, railroad rolling stock, tanks and other items of military equipment.

Since 1982, more than 47,000 visitors have toured Frenchman Flat to view the historic structures and twisted ruins, which stand as stark testimonial to the awesome power of the atom.

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Date Last Modified: November 24, 2008