A formal proposal to re-name Harney Peak has been submitted to the U.S. Board on Geographic Names. The proposed new name would be Black Elk Peak. Additional information, including where to submit comments on the proposal, is available athttp://geonames.usgs.gov/domestic/monthly_minutes.htm (click on 765th meeting and then scroll down to page 2).
The U.S. Board on Geographic Names has released its Quarterly Review List of proposals to name and rename geographic features in the U.S. among the proposals is one to change the name of Harney Peak in South Dakota to Thunder Peak.
http://geonames.usgs.gov/domestic/quarterly_list.htm (Click on Review List 422 and then scroll down to page 12).