None of his work remains, as it was all cleared from the mountain's face for the work of Augustus Lukeman, Borglum's replacement, but in his abortive attempt, Borglum had developed necessary techniques for sculpting on a gigantic scale that made Mount Rushmore possible.
None of his work remains. It was all cleared from the mountain's face for the work of Augustus Lukeman. Augustus Lukeman is Borglum's replacement. Borglum had developed necessary techniques for. This was in his abortive attempt. Borglum was sculpting on a gigantic scale. This was in his abortive attempt. This gigantic scale made Mount Rushmore possible.