OSU Special Collections & Archives Research Center
Civil War News 2017 Gettysburg Section by Historical Publications LLC - Issuu
News - SUL ROSS
Gettysburg SpringerLink
Military geology and the Battle of Gettysburg, July 1863 - Doyle - 2006 - Geology Today - Wiley Online Library
NPS Centennial: Cultural Resource Management
Military geology and the Battle of Gettysburg, July 1863 - Doyle - 2006 - Geology Today - Wiley Online Library
Little Round Top, Military Wiki
A Mystery Solved? Part 2 The Blog of Gettysburg National Military Park
Geodigest - 2006 - Geology Today - Wiley Online Library
Military geology and the Battle of Gettysburg, July 1863 - Doyle - 2006 - Geology Today - Wiley Online Library
Geodigest - 2006 - Geology Today - Wiley Online Library