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Tuesday, January 04, 2011 12:47 PM 1513747 AlleghenyCollege_GlacialDeposits1979.zip
Tuesday, January 04, 2011 12:47 PM 1936261 AlleghenyCollege_UnconsolidatedDeposits1987.zip
Wednesday, May 26, 2010 8:52 AM 3262085 NWPAGlacialDeposits.zip