"Henry Gannett, Chief Topographer. H.M. Wilson, Chief Geographer in charge. Triangulation by ... and S.S. Gannett. Topography by Geol. Survey of New Jersey, City of Philadelphia, Frank Sutton ... and Robert Muldrow.", "Surveyed in 1894.", and Relief shown by contours and spot heights.
Publisher:
U.S. Geological Survey,
Subject (Geographic):
Philadelphia Metropolitan Area (Pa.)--Maps
Subject (Name):
Gannett, Henry, 1846-1914, Gannett, Samuel S. (Sameul Stinson), 1861-1939, Geological Survey of New Jersey, Muldrow, Robert, Sutton, Frank, and Wilson, Herbert M. (Herbert Michael), 1860-1920
"Henry Gannett, Chief Topographer. H.M. Wilson, Chief Geographer in charge. Triangulation by ... and S.S. Gannett. Topography by Geol. Survey of New Jersey, City of Philadelphia, Frank Sutton ... and Robert Muldrow.", "Surveyed in 1894.", and Relief shown by contours and spot heights.
Publisher:
U.S. Geological Survey,
Subject (Geographic):
Philadelphia Metropolitan Area (Pa.)--Maps
Subject (Name):
Gannett, Henry, 1846-1914, Gannett, Samuel S. (Sameul Stinson), 1861-1939, Geological Survey of New Jersey, Muldrow, Robert, Sutton, Frank, and Wilson, Herbert M. (Herbert Michael), 1860-1920