( Tunnels in Granite )
Further along the Iron Mountain Road (through Custer State Park)there are three of these tunnels cut through granite ridges, all of them sited such that they point the traveler towards Mt. Rushmore.
Interesting Friday at work. That is all.
Further along the Iron Mountain Road (through Custer State Park)there are three of these tunnels cut through granite ridges, all of them sited such that they point the traveler towards Mt. Rushmore.
Interesting Friday at work. That is all.