China’s Top Secret Mao-era Plutonium Production Facility Identified

In 1967 China started the construction of a top secret, underground plutonium production complex in a cave underneath a mountain near Fuling in Sichuan province. The complex, known as Plant 816, was never finished; China declassified the project in 2002, and in 2010 part of the site was opened to tourism.[1]   Geospatial analysis reveals that one entrance of the Fuling facility is located at 29.55N 107.50E (see graphics below).

[1] Hui Zhang. “China’s HEU and Plutonium Production and Stocks,” Science and Global Security. 2011, Volume 19.P. 77.

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