Mount Rushmore National Memorial is a huge carving on a granite cliff called Mount Rushmore in the Black Hills of South Dakota. It shows the faces of four American Presidents: George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln.
Gutzon Borglum designed the memorial and supervised most of its work. Workmen used models that were one-twelfth the size to obtain measurements for the figures. The models were lifted to the edge of the cliffs to guide the workmen. The men cut the figures from Mount Rushmore’s granite cliff with drills and dynamite.

Work on the memorial began in 1927 and continued, with lapses, for over 14 years. Borglum died in 1941, before the project was finished. His son Lincoln finished the work. Gilbert C. Fite described it in his book Mount Rushmore. Mount Rushmore is so tall, it stands taller than the Great Pyramid of Egypt. This memorial is part of the National Park System.