Citizen Cartography Workshop: Building a Virtual Atlas
Stephen A. Schwarzman Building, South Court Classrooms (42nd St. & 5th Ave., Manhattan)

Help NYPL build the geospatial library of the future! This workshop will get you oriented with the a set of tools the Library has developed (available at that enables librarians and the general public to add valuable geographic context to old maps. The workshop will focus on the core activity of the website: georectification, or “warping” maps. This means overlaying digital images of historic maps onto a contemporary digital map (similar to Google Maps), transforming them into tiles of a virtual atlas.

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