R. Lee Hadden
US Geol Survey, Reston, VA
Activity
2004
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SALTPETER MINING IN SINNETT CAVE (PENDLETON COUNTY, WEST VIRGINIA) DURING THE AMERICAN CIVIL WAR
2 Geology and the Civil War IThursday, 25 March 20048:00 AM - 12:00 PM
2003
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THE HERINGEN COLLECTION OF THE US GEOLOGICAL SURVEY LIBRARY
94 History of Geology (GSA History of Geology Division, History of Earth Science Society [HESS])Monday, 3 November 20031:30 PM - 3:30 PM