When the warm weather arrives in our state, it’s time to start thinking about some scenic drives. South Dakota’s Black Hills are truly spectacular, and one of the best drives to take there is the Peter Norbeck Scenic Byway. This road is surrounded by beautiful scenery, but you’ll want to take it slow; one section of the byway is the windiest road in South Dakota.
The Iron Mountain Road portion of the Peter Norbeck Scenic Byway was built in the 1930s. Governor Peter Norbeck personally scouted out the 17-mile-long section called Iron Mountain Road.
Engineers told Governor Norbeck that the road couldn’t be built, but he went ahead with the plans and it ended up being one of the most majestic feats of road engineering in U.S. history.
When you drive this road, you’ll be surrounded by some of the most picturesque scenery in South Dakota.
Can you see why Iron Mountain Road is considered to be the most beautiful road in South Dakota?
You won’t be bored on Iron Mountain Road. In addition to the gorgeous scenery, you’ll find 314 curves and 14 switchbacks, making it the road with the most curves in South Dakota. The road is fairly narrow, so you’ll want to pay close attention while you’re driving.
The three South Dakota tunnels carved into the side of the mountain are white-knuckle moments for many drivers, especially those with RVs. The tunnels are narrow, but average about 13 feet wide, so even most RVs go through with no problem.
Tunnels include the C.C. Gideon Tunnel (pictured here), the Doane Robinson Tunnel, and the Scovel Johnson Tunnel.
The tunnels are not only functional; they’re artistic, too. All three were specially placed to frame Mount Rushmore.
Three pigtail bridges help the road climb higher and higher while avoiding cutting into the surrounding wilderness even more.
Plan on spending around an hour to travel this stretch of road. The speed limit is only 25 mph, and when you take all those curves, you’ll be slowing down more than that.
Address: 13329 US Highway 16A, Custer, SD 57730
What's your favorite thing about driving on Iron Mountain Road?
While you're in the mood to explore, check out this short hike that offers up some incredible views.
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