Archives Map Collection - A guide to Manuscript Group 11, which describes over 1,000 maps. The maps are grouped into seven sections: Colony and Commonwealth; Counties; Townships; Cities and Boroughs; Boundaries, Topography, Geology, Parks; Transportation (including Indian trails, roads and turnpikes, rivers and streams, canals, railroads, air routes, etc.); Military and Battlefields (French and Indian War, Revolutionary War, and Civil War).
Birdseye Maps - Views of various Pennsylvania municipalities drawn by Thaddeus Mortimer Fowler between 1887 and 1906.
Original Suveys ("Copied Surveys") - These surveys, from Record Group 17, reproduce the original surveys completed for people who purchased unclaimed land directly from the land office maintained by William Penn and his familly, or (later) from the Commonwealth of Pennsylvania, between 1681 and 1912.