Starting mileage: 7501 Starting time: 8:30 am Ending mileage: 7847 Ending time: 6:30 pm Travel mileage: 346 Travel time: 10:00 hours This morning when we got in the car it was 32 degrees and there was frost on the windshield. We went back to Mt. Rushmore in the morning to see it in the sunshine and to take some more photos. After leaving the Black Hills, the terrain was mostly rolling prairie for the next 300 miles. Although it appeared to be mostly for cattle grazing, we did see fields of sunflower, corn, sorghum, oats, hay and something bright green that we couldn't identify. Our first stop was the world-famous Wall Drug Store in Wall SD, just outside of the Badlands NP. There are signs for hundreds of miles around advertising Wall Drug. It is a huge place, with shops for jewelry, rocks, western gear, souvenirs and a huge cafe with the world's largest collection of western art. We had 5 cent cups of coffee, something they are famous for, and I had a piece of...