Engineering Mount Rushmore

Engineering Mount Rushmore — page 5
people have lived in South Dakota's Black Hills for many generations To them this area is sacred ROBINSON'S IDEA The land Borglum visited did not have any roads Borglum and Robinson rode on horses to explore the mountains As they rode Borglum studied the rock formations carefully How did sunlight strike them Would the rock be strong enough to sculpt Did large cracks ruin the clean surfaces When Mount Rushmore came into view Borglum grew excited The mountain faced southeast That provided good light for most of the day The rock was a fine solid granite It could be sculpted It stood 500 feet 152 m taller than the surrounding land That would make a carving easy to see from far away Originally Robinson had wanted the carvings to reflect the area's history He imagined sculptures of Lakota Sioux chief Red Cloud Nearby would be the explorers Meriwether Lewis and William Clark