00886nam 2200169z- 450 9910712661703321(CKB)5470000002495545(EXLCZ)99547000000249554520230509c2005uuuu -u- -engAntietam National Battlefield, Chesapeake and Ohio Canal National Historical Park, & Harpers Ferry National Historical Park : geologic resource evaluation reportGeologic Resources Division, Natural Resource Program Center ;Denver, ColoradoAntietam National Battlefield, Chesapeake and Ohio Canal National Historical Park, & Harpers Ferry National Historical Park BOOK9910712661703321Antietam National Battlefield, Chesapeake and Ohio Canal National Historical Park, & Harpers Ferry National Historical Park : geologic resource evaluation report3350168UNINA