The links on the City Maps page will take you to maps of Portsmouth that you can view and download as PDF files. They were produced using data from Portsmouth's geographic information system (GIS).
View the City Maps
As New Hampshire's Statewide Geographic Information System (GIS) Clearinghouse, NH GRANIT offers an array of geospatial services, including:
- data development/distribution
- spatial analysis
- online mapping
- image processing
- application development
- related technical services
Go to State Resources
The UNH Library hosts a collection of historic USGS maps of New England and New York. Included is a Town Index which will allow you to view map sections by town.
Historic USGS Maps of New England & NY
The Evans Map Room collection consists of over 189,000 sheet maps and 3000 atlases, books, journals, CD-ROMS, computer software, globes, and aerial photos. Although, the collection is international in scope, it is particularly strong for New Hampshire, the Upper Connecticut River Valley, and New England.
Visit the Dartmouth College Library Map Room