The 26,000-Year Astronomical Monument Hidden in Plain Sight

CloseMenu Ideas A high resolution drawing of the terrazzo layout. (Courtesy of US Bureau of Reclamation) Art The 26,000-Year Astronomical Monument Hidden in Plain Sight The western flank of the Hoover Dam holds a celestial map that marks the time of the dam’s creation based on the 25,772-year axial precession of the earth. by Alexander Rose Jan 29, 02019 One of the two massive bronze cast sculptures that flank Hoover Dam’s Monument Plaza. (Photo by Alexander Rose)On the western flank of the Hoover Dam stands a little-understood monument, commissioned by the US Bureau of Reclamation when construction of the dam began in 01931. The most noticeable parts of this corner of the dam, now known as Monument Plaza, are the massive winged bronze sculptures and central flagpole…

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