🎉 There's a new version of Atlascope!

Atlascope v2.0 was released on January 13, 2023. It has many new features and user improvements. The new URL is atlascope.org

This legacy version of Atlascope will still be maintained and supported through April 2023.

Go to Atlascope v2Stay on v1 for now

Atlascope is a tool for exploring historic urban maps in metropolitan Boston and telling stories about how places have changed over time.

Where do you want to start exploring?

Currently serving atlases of Boston and its inner suburbs.

A project of the Norman B. Leventhal Map & Education Center at the Boston Public Library

Atlascope Boston

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About Atlascope

Urban atlases offer some of the most important sources of information about the historical geography of cities in the United States, with extroardinary detail about buildings, owners, and city infrastructure. Until now, browsing these atlases has involved looking through volumes and pages for a specific area of interest. The Atlascope project brings nearly 100 atlases of Boston and its surroundings into a seamless digital interface. For more about urban atlases, see our Urban Atlases Research Guide.

Exploring Atlases

The map viewer will automatically choose which of our collection of atlases are in view as your move around the map. Pan, zoom, and rotate the map, and then find which years are available in the layer dropdown menus.

You can also jump to a specific address by selecting Search, or find your current location by selecting Locate.

If you want to see everything that's available in Atlascope, select Show All Atlases to bring up an overview map of the entire collection.

You can control the overlay appearance by switching to Glass, Slider, or Opacity modes. Then drag the red grabber handle to compare between the overlay and base maps.

Try setting both the base and overlay layers to historic atlases. What comparisons can you make that show how the city has changed?


Atlascope was developed at the Leventhal Map & Education Center at the Boston Public Library by Garrett Dash Nelson and Belle Lipton. Atlas layers were prepared by a team of interns including Ian Donnelly, Hanaan Yazdi, Abby Duker, Rachel Mead, Luwei Chen, Brian Kominick, Madison Bastress, Liz Kellam and Victoria Mak.

CLIR logoAssociates of the BPL Logo

Digitization and preparation of atlas layers was made possible by the Council on Library and Information Resources and the Associates of the Boston Public Library.

Source and Citations

If you use these maps in your work, teaching, or publication, please cite Atlascope Boston, Norman B. Leventhal Map & Education Center at the Boston Public Library, together with the bibliographic information for the map(s) used, which is available in the "About this Map" tab from the map window view.

Interested in creating an Atlascope for your own city or library collection? Contact us for more information.

Base Map · Source Information

Overlay Map · Source Information

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Base Map Modern
Overlay Map 1883