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Patuxent folio, Maryland-District of Columbia
(Geological Survey (United States), 1907)
Silverton folio, Colorado
(Geological Survey (United States), 1905)
Needle mountains folio, Colorado
(Geological Survey (United States), 1905)
Engineer Mountain folio, Colorado
(Geological Survey (United States), 1910)
Walsenburg folio, Colorado
(Geological Survey (United States), 1900)