She graduated from South Dakota State University in 1980 with a Bachelor of Science in biology and wildlife and fisheries management.
[3] Detmers lives and works in Rapid City, South Dakota.
[4] In 2012, Peggy Detmers lost[5] a legal battle with actor Kevin Costner.
She created Lakota Bison Jump, 17 large multimillion-dollar bronze statues of mounted American Indians driving a buffalo herd off a cliff.
The statues were meant to be a centerpiece of 'The Dunbar', a Deadwood, South Dakota resort developed by Costner.