Gutzon Borglum was the main sculptor behind the creation of the Mount Rushmore National Memorial in the Black Hills of South Dakota in the United States. He envisioned a monument symbolizing 150 years of American history, featuring Presidents George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln.
Borglum and hundreds of workers used dynamite, hammers, chisels, and drills to carve the 60-foot-tall presidential faces into the granite on the southeast side of Mount Rushmore. Borglum began the project in 1927 but died in March 1941. His son, Lincoln Borglum, took over the final work on the project, which was completed in October 1941.