Harney Peak’s distinction as the “highest point in the U.S. east of the Rockies” is as rock-solid to many South Dakotans as the granite at the 7,242-foot summit.

The U.S. Board of Geographic Names decided on Thursday to rename South Dakota's highest peak, Harney Peak in the Black Hills National Forest. Its new name: Black Elk Peak. Black Elk was a Lakota ...