After reading about Stone Mountain near Atlanta, Georgia, Robinson was inspired to create a sculpture project at the Needles, to have several granite pillars carved as likenesses of famous people. He hoped that such a sculpture would attract greater tourism to South Dakota.
Following his exploration of Stone Mountain near Atlanta, Georgia, Robinson conceived a sculpture project at the Needles, featuring several granite pillars carved as representations of renowned individuals. He anticipated that such an artwork would draw more tourists to South Dakota.