Teaching GIS and Maps

For educators teaching GIS & Maps at Johns Hopkins University.

Data Services

We are here to help you find, use, manage, visualize and share your data. Contact us to schedule a consultation. View and register for upcoming workshops. Visit our website to learn more about our services.

Ask Data Services for help with maps

 This Ask Us chat window is monitored Monday-Thursday 12pm-4pm during the summer 2021It will be closed July 5th in observance of the Independence Day holiday.

If you have any questions for Data Services outside of this time, please contact us via email.

Where to find maps at Johns Hopkins

The largest collection of maps at Johns Hopkins is found in the Data Services area of Eisenhower Library, on A-level.  It is the most comprehensive collection of Baltimore City maps, atlases, and aerial photography found anywhere.  Included are thousands of printed map sheets and digital images.

All maps of Baltimore City, the State of Maryland and places within, are listed in the library’s online catalog Catalyst.  Digital copies of maps, when not covered by copyright restrictions, are available for free downloading via our institutional repository JScholarship.

Highlights of the collection include:

  • All Maryland historical county atlases (1876 – 1915)
  • Baltimore City atlases & maps series (1876 – 2008)
  • Topographic maps
  • Aerial photography  of Baltimore City (1920 – 1972)
  • Baltimore urban development plans
  • Special purpose maps of Baltimore including, zoning, transit, infrastructure, ward boundaries, neighborhoods, cartoon maps, roads, water distribution, and much more.

In addition to the main map collection in the Eisenhower Library building, small collections of maps are found at the George Peabody Library and at the John Work Garrett Library.  Maps in theses collections are also listed in the Catalyst online catalog. Digital images of their Maryland and Baltimore sheet maps are also included in JScholarship.