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1996. Federal Emergency Management Agency. Q3 flood data for Virginia, 1996. The Q3 Flood Data are derived from the Flood Insurance Rate Maps (FIRMs) published by the Federal Emergency Manag... Federal Emergency Management Agency.
1877. Harvard Map Collection, Harvard College Library, United States Coast Survey., Bache, A. D. (Alexander Dallas), 1806-1867., Cutts, R. D. (Richard Dominicus), 1817-1883., Harrison, A. M. (Alexander Medina), 1829-1881., Metzeroth, G. B., Rodgers, A. F., Alden, James, 1810-1877., Blondeau, A., Mathiot, G., Ricketts, James J., Lamber, J., Fairfax, Wilson M. C., and Knight, J. (Jonathan), 1787-1858. This layer is a georeferenced raster image of the historic paper map entitled: Entrance to San Francisco Bay, California, from a trigonometrical su... Harvard Map Collection, Harvard College Library.
1954. Harvard Map Collection, Harvard College Library and Geological Survey (U.S.). This layer is a georeferenced raster image of the United States Geological Survey sheet map entitled: San Francisco and vicinity, California, 1954.... Harvard Map Collection, Harvard College Library.
1862. Harvard Map Collection, Harvard College Library, Arnold, E. G., and Colton, G. Woolworth (George Woolworth), 1827-1901. This layer is a georeferenced raster image of the historic paper map entitled: Topographical map of the original District of Columbia and environs ... Harvard Map Collection, Harvard College Library.