How long did it take to sculpt the faces on Mount Rushmore?
It took 12 years to complete the sculpting of four presidents’ faces — George Washington, Thomas Jefferson, Abraham Lincoln and Theodore Roosevelt — into the granite of Mount Rushmore in the Black Hills National Forest in South Dakota. Washington’s was the first face chiseled from the rock and was the first completed in 1934. Next came Jefferson’s face in 1936 and Lincoln’s a year later. Teddy Roosevelt’s face completed the monument in 1939. Source: History.com