Mount Rushmore National Memorial Park in Keystone, South Dakota covers an area of 5 km². The rock formation was a (heilig) sacred Indian site once and became a national (Denkmal) memorial on March 3, 1925.
Most visitors come to this place to see the famous (Büsten) busts of the presidents George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln (from left to right). The busts are about 18 meters high and were (hier: gehauen) carved by 400 workers between 1927 and 1941.
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