Labels:dialog box | mountain | poster | sky OCR: Surset t Mount Rushmore About Mount Rushmore This national memorial ir the Black Hills was carved by Gutzon Borg lum between 1927 and 1941. The 60- -foat -high 18 m granite hea ds of Gearge Washington Thomas Jefferson, Abral ham Lincoln and Theodore Roosevelt represent the na tion's founding political philosophy. preservat tion, and expansion and tonservation. It took 14 years t comp lete the four figures on Mount Rushmore. Workers carved the figures using drills and dynamite Rushue foot grarite George Thormas Abra philosop conserva toak vears
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