Galleries of historic town maps and aerial imagery for Hopewell Borough, Pennington Borough, Titusville / Washington Crossing, and Hopewell Township. Many show the locations and names of properties.
- Map Archives for full list of Hopewell Valley related maps
- Hopewell Valley Panoramas to explore aerial panoramas
- Hopewell Valley Places for images, cultural survey documents, maps, and related materials
Titusville / Washington Crossing
- Historic Town Maps of Titusville, c. 1875 to 1890
- Historic Town Maps of Hopewell Township, c. 1850 to 1905