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Meadowcroft rockshelter or sand stone re-entrant. In Washington county, Pennsylviania
MCRS(or SSRE) could be one of the longest occupational sequences in North America, dating to around 15,000 bc. It is in Washington county, Pennsylviania. It was discovered in 1955 by landman/farmer Albert Miller. He immediately contacted the university (university of Pittsburgh), and in 1970 236 sites were excavated. It is located “High and Dry,” 15m…