Category:1780 maps of Allegheny County, Pennsylvania

Media in category "1780 maps of Allegheny County, Pennsylvania"

The following 2 files are in this category, out of 2 total.

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  A map of the land abt. Red Stone and Fort Pitt, LOC 74692581.jpg 5,168 × 7,111; 4.65 MB
  
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  A map of the land abt. Red Stone and Fort Pitt, LOC 74692581.tif 5,168 × 7,111; 105.14 MB