LA to NJ Road Trip: Day 4
Devil's Tower National Monument
According the NPS website, "The magma which formed Devils Tower cooled and crystallized into a rock type known as phonolite porphyry. It is a light to dark-gray or greenish-gray igneous rock with conspicuous crystals of white feldspar. Hot molten magma is less dense and occupies more volume than cool hardened rock. As the rock cooled, it contracted, forming hexagonal (and sometime 4-, 5- and 7-sided) columns separated by vertical cracks."
Jewel Cave National Monument
We finally crossed into South Dakota and stopped at Jewel Cave. We knew we'd be too late to get tickets to visit the cave on a Sunday, but we are planning to go into Wind Cave tomorrow instead which is part of the same system.
We were delighted to see some bighorn sheep on the hill as we left the monument.
Mount Rushmore National Memorial
Our last stop today was at Mt. Rushmore. We were very impressed with the Black Hills (and so glad to get out of the dry plains) and the rock formations towering above like huge fingers.
We actually thought the carvings were smaller than we expected and we have some reservations about how the rocks have been defaced by these carvings, but the memorial surrounding the area itself is lovely and patriotic.
We left the area exhausted but looking forward to tomorrow's adventures!