ultrafacts: Surrounding the base of the monument is a terrazzo floor embedded with a “star map”. The map depicts the Northern Hemisphere sky at the moment of President Roosevelt’s dedication of the dam. This is intended to help future astronomers,
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ultrafacts: Surrounding the base of the monument is a terrazzo floor embedded with a “star map”. The map depicts the Northern Hemisphere sky at the moment of President Roosevelt’s dedication of the dam. This is intended to help future astronomers,
