Iron Mountain Road (Black Hills)
Specifically engineered by Governor Peter Norbeck to force travelers to slow down and savor the scenery. Features 314 curves in 17 miles, 14 switchbacks, 3 wooden corkscrew 'pigtail' bridges where the road loops over itself, and 3 narrow granite tunnels perfectly aligned to frame Mount Rushmore in the windshield.
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The undisputed epicenter of motorcycle culture in the eastern United States, sitting at Mile 0 of the Tail of the Dragon (US-129). An electric, adrenaline-fueled carnival of sportbikes, adventure tourers, and interstate cruisers. Smells of warm tire rubber, two-stroke exhaust, and hickory smoke.
Tank-Bag Quick Reference Sheet
Frequently Asked Questions
How many curves and miles is Iron Mountain Road (Black Hills)? ▼
Iron Mountain Road (Black Hills) spans 17 miles and packs approximately 314 curves (18.5 curves per mile) with an elevation delta of 4,300 ft - 5,445 ft and technical rating 8/10.
Where are the start and end coordinates? ▼
The route starts at Keystone, SD (Latitude 43.8955, Longitude -103.4242) and finishes at Custer State Park Entrance, SD (Latitude 43.7667, Longitude -103.4667).
How can I download the GPX file for GPS navigation? ▼
Click the "Download Free GPX" button on this guide. The standard XML file is 100% free and ready to load into Garmin zūmo, BMW Motorrad Connected, Rever, Scenic, or Google Maps.