The Riverbluff Cave, a paleontological site, was discovered in the United States near Springfield, Missouri. The entrance is filled stalactites and stalagmites. The cave is approximately 830,000 years old, making it the oldest fossil cave site in the US. It measures 610m in length, and contains Pleistocene fossils of the short-faced bear (Artcodus Simus), the largest bear species on Earth, measuring around 5-6 feet at the shoulder and weighing in excess of 2,000 pounds.
The cave is located in the extensive karst landscape of Springfield Plateau, western Missouri Ozarks. It was formed within the soluble Mississippian limestones. It was accidentally revealed by engineers while they were blasting for a new road.
Although the cave is not open for public viewing, it is the second cave in the world to be wired for virtual tours. The Riverbluff Cave Field House was opened in 2009 and features fossils from Riverbluff Cave as well as from other parts of the world.Springfield MO Valley Water Mill Pond
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