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Jan 05, 2007

DRL mounts two new Historic Pittsburgh map collections

The DRL released the City of Pittsburgh Geodetic and Topographic Survey Maps (1923-1961) which contain 171 plates that depict contours and spot heights of much of Allegheny County. The DRL also released the Flood Commission of Pittsburgh maps (1912) which contain 14 plates produced as part of the Report of the Flood Commission.



Two New Map Collections Released

We added two new map collections to Historic Pittsburgh. The City of Pittsburgh Geodetic and Topographic Survey Maps (1923-1961) contain 171 plates that depict contours and spot heights of much of Allegheny County. The Flood Commission of Pittsburgh maps (1912) contain 14 plates produced as part of the Report of the Flood Commission. They depict the results of the surveys, investigations and studies made by the commission for the purpose of determining the causes of, damage by, and methods of relief from floods in the Allegheny, Monogahela and Ohio rivers at Pittsburgh.