Peter Norbeck Scenic Byway

68 paved miles looping through the granite core of the Black Hills, taking in Iron Mountain Road and the Needles Highway. The signature features are spiraling pigtail bridges and six one-lane rock tunnels cut so tightly that oversized vehicles cannot pass; expect blind corners, sharp switchbacks and frequent stops for bison and mountain goats. The Needles Highway section is closed through the winter months.