Atlas of Historical County Boundaries

• The Newberry Library
• Dr. William M. Scholl Center for American History and Culture

Please note: a critical component of the AHCB interactive map technology has been retired by one of our third-party vendors. We are actively working to rebuild the technology and minimize any downtime for the maps. During this transition, data files will remain available for download or you can view the PDFs at our digital collections site.

• Atlas of Historical County Boundaries
• Contact us: dis@newberry.org

• The Newberry makes its collections available for any lawful purpose, commercial or non-commercial, without licensing or permission fees to the library, subject to the following terms and conditions: https://www.newberry.org/rights-and-reproductions