The Historic Pittsburgh Map Collections comprise four series of maps helpful for studying and tracing the physical development and changes of the Pittsburgh area landscape:

• City of Pittsburgh Geodetic and Topographic Survey Maps, 1923-1961
  Contains 171 plates prepared by the City of Pittsburgh Department of Planning staff. Plates can be browsed from an index map.
• Flood Commission of Pittsburgh, Pennsylvania, 1912
  Contains 14 plates produced as part of the Report of the Flood Commission. Plates can be browsed from an index map.
• G. M. Hopkins Company Maps, 1872-1939
  Contains 26 volumes (1,122 plates) that show lot and block numbers, dimensions, street widths, names of property owners, churches, cemeteries, mills, schools, roads, railroads, lakes, ponds, rivers, and streams. Plates within each volume can be browsed; all plates are searchable by street name and building.
• Warrantee Atlas of Allegheny County, Pennsylvania, 1914
  Contains 49 plates that depict the original land grants that settlers of present-day Allegheny County received from the Commonwealth after William Penn and his descendants vested the land to the legislature. An index to plates and names is available.

We offer print and digital reproductions of the maps for sale. If interested in making a purchase, please see our information on how to place an order.

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Historic Pittsburgh is hosted by the University of Pittsburgh's Digital Research Library.