Help with clearance in Black Hills Routes

[ScottBrownstein]

Taking a Class C (12' high) from Rapid City SD, and visiting the Black Hills area staying in Custer State Park. I noticed several low tunnels in the area of Mt Rushmore and am concerned about navigating in an area with potential tunnels. The ones I see are 12'-9" down to 10'-7" with several around 12'. I can avoid the ones I know about but how can I be sure when using a GPS or google maps in the area , I won't run into any unmarked tunnels, some of the roads are pretty rural. For such a popular vacation destination for campers and RV's, there must be a solution to address my concern.

Any tips or words from experience would be greatly appreciated.

[modemem]

If you stay OFF of Needles Highway and Iron Mountain Road you should be OK. After you get to Custer State Park if you have a Toad Vehicle then the Needles Hwy/Iron Mountain Loop is a must see...BEAUTIFUL!

[CAT-RN]

Modemem gave you the best advice. You can NOT take that class C on Needles Highway. But Needles is a beautiful drive in a passenger car.

Russell