Did you know that many of the world’s largest caves are found in the United States? The third largest is in South Dakota – Jewel Cave National Monument. Jewel Cave got its blinging name because of the calcite crystals that cover the walls and ceilings of the cave and shimmered […]
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When I think of mountainous states I think of Colorado. Or even the Sierra Nevada of California. Or the Appalachian of the east. But I don’t think South Dakota. I always found the term “Black Hills of South Dakota” puzzling because I didn’t think there were hills there and Mt. […]