Simplify the following text for a Grade 8 native English-speaking person.
Original: The Crazy Horse Memorial is a mountain monument that is currently under construction in the Black Hills of South Dakota , in the form of Crazy Horse , an Oglala Lakota warrior , riding a horse and pointing into the distance .
Simplified: It is located in the Black Hills of South Dakota , USA . The statue depicts Crazy Horse , a famous Lakota warrior .