When Lakota artist Marty Two Bulls Jr. looks at the Black Hills of South Dakota, he doesn’t just see its natural beauty, he ...

Today, the former Homestake Gold Mine, a 300-mile tunnel system carved inside the mountains, houses the Sanford Underground Research Facility, where scientists study particle physics and dark matter.

Lakota Artist Smudges the Former Gold Mine Inside the Black Hills When Lakota artist Marty Two Bulls Jr. looks at the Black Hills of South Dakota, he doesn’t just see its natural beauty.