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Roads 167 Geology 157 History 120 Hydrology 106 Watersheds 104 Census districts 102 Trails 79 more ... Outdoor recreation 67 Hiking 59 Cities and towns 47 Maps 47 Groundwater 43 Administrative and political divisions 39 Geomagnetism 38 Historic sites 29 Railroads 28 Express highways 27 Stream measurements 24 Land use 23 Water quality 23 Central business districts 22 Floods 22 Description and travel 21 Groundwater flow 21 Parks 21 Water-supply 21 Eau souterraine 18 Hydrogeology 18 Water 18 Histoire 17 less ...

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Pennsylvania State University 899 West Virginia University 738 Bucknell University 168 State Library of Pennsylvania 139 Lehigh University 84 Marshall University 68 more ... Montclair State University 64 University of Pittsburgh 60 Rutgers University 53 Commonwealth University of Pennsylvania 41 University of Pennsylvania 36 Temple University 32 Franklin and Marshall College 31 Villanova University 29 Muhlenberg College 28 West Chester University 24 New York University 20 Gettysburg College 12 Drew University 11 Indiana University of Pennsylvania 11 Carnegie Mellon University 9 Bryn Mawr College 8 Lebanon Valley College 8 Pennsylvania Western University 8 Haverford College 7 Lafayette College 7 Seton Hall University 6 Dickinson College 4 Elizabethtown College 4 Millersville University 4 see all ... less ...

Book 905 Map 869 Government Document 702 Unknown 38 Serial 28 Musical Score 24 more ... Thesis 19 Manuscript 17 Audio 14 Conference Proceeding 9 Book Chapter 5 Electronic 5 Journal 3 Physical Object 2 Kit 1 Photo 1 see all ... less ...

G - Geography, Anthropology, Recreation

Geological Survey (U.S.) 683 Virginia. Division of Mineral Resources 163 Virginia. Department of Highways 112 Virginia. Department of Environmental Quality 105 United States. Bureau of the Census 100 National Cartography and Geographic Information Systems Center (U.S.) 98 more ... United States. Natural Resources Conservation Service 98 Virginia. Division of Soil and Water Conservation 98 Virginia. Department of Transportation 84 United States. National Park Service 73 Virginia. Department of Mines, Minerals, and Energy 51 Potomac Appalachian Trail Club 30 United States. Federal Highway Administration 28 NOAA National Ocean Service 25 Virginia. Department of Highways and Transportation 24 United States. Army. Corps of Engineers 20 Galat, G. A. 18 Miller, Ralph L. (Ralph LeRoy), 1909-1991 18 Kentucky Geological Survey 17 Lesure, Frank Gardner, 1927- 16 United States. Forest Service. Southern Region 16 ADC (Firm) 15 Fairfax County (Va.). Division of Mapping 15 Champion Map Corporation 14 United States. National Ocean Service 13 Weyss, J. E. 13 Blanchett, Jean 12 Bromery, Randolph Wilson, 1926- 12 Gilbert, Francis P. 12 Michler, N. (Nathaniel), 1827-1881 12 see all ... less ...

English 1,854 French 7 Dutch 4 Italian 4 Latin 3 Spanish 3 more ... German 1 see all ... less ...

Maps 1,500 Topographic maps 400 Cartes topographiques 310 topographic maps 308 Thematic maps 203 Cartes géographiques 118 more ... Road maps 104 Guidebooks 79 Tourist maps 74 History 60 Geological maps 47 Early works to 1800 38 Guides 34 Census, 1970 28 Early works 24 Facsimiles 24 Early maps 23 Atlases 19 Government publications 16 Tours 14 Cartes 13 Cartes géologiques 12 geological maps 12 Electronic books 11 Outline maps 11 Aerial views 10 Bathymetric maps 10 Cartes bathymétriques 10 Guides touristiques 10 bathymetric maps 10 see all ... less ...

Civil War, 1861-1865 42 Colonial period, ca. 1600-1775 14 19th century 7 20th century 7 Siege, 1781 7 1580-1631 6 more ... 1890-1971 5 1893-2001 5 18th century 4 Early works to 1800 4 Revolution, 1775-1783 4 To 1775 4 1861-1865 3 1863 3 Cretaceous 3 Tertiary 3 1600-1775 2 1700?-1756 2 1900-1999 2 19e siècle 2 Mississippian 2 ca 1600-1775 (Période coloniale) 2 -1617 1 1552?-1618 1 1574-1635 1 1580-1626 1 1621 or 1622-1686 1 1700-1799 1 1700-1899 1 1732-1799 1 see all ... less ...

Virginia United States 180 West Virginia 173 Maryland 168 Virginie 161 North Carolina 82 more ... Shenandoah National Park (Va.) 71 Shenandoah National Park 68 Fairfax County 61 Kentucky 50 Appalachian Trail 45 Tennessee 43 Delaware 39 Middle Atlantic States 39 Pennsylvania 36 Fairfax County (Va.) 34 Loudoun County 34 Washington (D.C.) 31 Virginie-Occidentale 27 Montgomery County 26 Buchanan County 25 Lee County 25 George Washington National Forest (Va. and W. Va.) 24 Prince William County 24 Richmond 24 Spotsylvania County 24 Arlington County 20 Richmond (Va.) 20 Alexandria 19 Wise County 19 see all ... less ...

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