Keystone, South Dakota

Black Hills National Forest officials propose treating nearly 3,000 acres in the Ridgeback Vegetation Management project area about three miles east of Keystone.

A mining company is going to explore for more lithium near Hill City. Last month, the company announced it was going to explore for the mineral near Keystone. The new exploration project is larger.

A mining company says it’s going to drill dozens of holes near Keystone to search for a lithium-bearing mineral called spodumene. The move comes as the Black Hills are seeing an increase in claims for lithium and other minerals.

Carrie Ingalls, sister of Laura Ingalls Wilder, lived a productive life in South Dakota as a newspaper manager, mother, and philanthropist.

Engineer Charles Williamson recalls how a construction mishap begat yet another local Black Hills landmark.

Gutzon Borglum's daughter talks about completing the Hall of Records, her famous family, and more.

Sculptor Gutzon Borglum's original plans for Mount Rushmore were very different from the finished carving.

Film clips from 1927 - 1941. Rushmore worker interviews from 1992.

With Mount Rushmore as a backdrop, President Dwight Eisenhower addressed the South Dakota Young Republicans League.

President Franklin D. Roosevelt at the dedication of the Jefferson sculpture.