Sculptor Korczak Ziolkowski gained some fame at the 1939 New York World’s fair. As a result he was asked by Lakota Chief Henry Standing Bear to come to the Black Hills of South Dakota and carve a mountain “to let the white man know the red man has great heroes also”. (You notice he said “red man” and not “native american”.)
Chief Crazy Horse was chosen to be the subject because he never signed a treaty and refused to surrender. (He was killed by a U.S. soldier who stabbed him in the back while under a flag of truce (sound familiar?)).
Although the project was started in 1948, it is still not completed because Korczak, and now The Crazy Horse Memorial Foundation, refuses support from State or Federal Government, but relies on donations.
This is what the mountain will look like when the carving is completed. By my calculation, that will be in about 75 years.