Mount Rushmore is a project that involved the efforts of nearly 400 men and women. The duties involved varied greatly from the call boy to drillers to the blacksmith to the housekeepers.The workers had to endure conditions that varied from blazing hot to bitter cold and windy. Each day they climbed 700 stairs to the top of the mountain to punch-in on the time clock. Then 3/8 inch thick steel cables lowered them over the front of the 500 foot face of the mountain in a "bosun chair". Some of the workers admitted being uneasy with heights, but during the Depression, any job was a good job. The work was exciting, but dangerous. 90% of the mountain was carved using dynamite. Gutzon Borglum selected these four presidents because from his perspective, they represented the most important events in the history of the United States. These faces represent president George Washington, Thomas Jefferson, Theodore Roosevelt and Abraham Lincoln. This location is in south Dakota USA. For more information about this location, visit https://www.nps.gov/moru/learn/historyculture/stories.htm