Crazy Horse was a Sioux war leader who was never defeated in battle. He was one of the strategists at the Battle of Little Big Horn, where General Custer was wiped out by an alliance of Indian tribes.
He fought to protect his home in the Black Hills of what is now South Dakota. He was never defeated, but he did surrender and was taken to Fort Robinson, in the Pine Ridge area of Nebraska. Sadly, he was murdered there, stabbed in the back by a bayonet, to the shame of his captors.
He died in 1877. Many years later, Indian leaders persuaded an award winning sculptor, Korczak Ziolkowski, to build a monument such as Mount Rushmore, honoring Crazy Horse. The “monumental” job was undertaken by the artist in 1948, but is still not completed. Mr. Ziolkowski died in 1982. His family continues the task. So far, after six decades, only the face of Crazy Horse is recognizable. It is not really a task of sculpting because a mountain is being carved by dynamite primarily. There is a sculpture done by the artist which is being recreated on a much larger scale. It is a daunting task.
I recommend that you visit the monument, which is near Custer, South Dakota. There is no hurry though. Take your time.