Hill City via Iron Mountain Road

This route is entirely paved and known for its challenging and winding nature. You'll encounter 314 curves, 14 switchbacks, and three unique 'pigtail' bridges where the road loops over itself. These features contribute to significant elevation changes, making it a demanding ride that requires very good fitness.

The route offers breathtaking views of the Black Hills landscape and Custer State Park. Highlights include the Norbeck Overlook, Center Lake, and the famous three tunnels bored through solid rock that perfectly frame views of Mount Rushmore National Memorial. You'll also pass by Needles Highway and impressive Rock Formations in Black Hills National Forest.

No, this is considered a 'difficult' road ride requiring 'very good fitness.' The numerous turns, switchbacks, pigtail bridges, and significant elevation gain make it technically and physically demanding. Beginners might find it too challenging.

The best time to cycle is generally from late spring through early fall (May to October) when the weather is mild and the road is free of snow and ice. Always check local weather conditions before you go, as conditions can change rapidly in the Black Hills.

Hill City serves as a convenient starting point for this ride. You can find parking in Hill City, and bicycle rental services are also available there, making it easy to begin your adventure.

While cycling on Iron Mountain Road itself doesn't typically require a specific cycling permit, portions of the route pass through Custer State Park. An entrance fee is required to enter Custer State Park, which applies to vehicles. Cyclists should check the current Custer State Park entrance fee requirements before their ride.

Dogs are generally allowed in Black Hills National Forest on a leash. However, specific regulations may apply within Custer State Park sections. It's always best to check the latest park rules regarding pets, especially if you plan to stop at visitor centers or specific attractions.

Yes, this route briefly intersects with sections of the George S. Mickelson Trail and the Centennial Trail. You may also encounter very short segments of the Sunday Gulch Trail.

The Black Hills National Forest is home to diverse wildlife. Along the route, you might spot deer and, if you're lucky, even black bears. Remember to maintain a safe distance and never feed wild animals.

The Iron Mountain Road is renowned as a masterpiece of artistic engineering. It was intentionally designed to be slow-going, encouraging riders to savor the scenery rather than speed through. Its unique features like the pigtail bridges and tunnels framing Mount Rushmore make it an unforgettable cycling experience.

The full route, covering approximately 77 kilometers (48 miles), typically takes around 4 hours and 9 minutes to complete for a racebike cyclist, depending on your pace and how often you stop to enjoy the views.