citizen cartographer


Become a citizen cartographer! Last week, the New York Public Library was part of Social Media Week in New York City, and we took the opportunity to show off our brilliant staffers in social media and our wonderful work in the world of maps. The photo above shows NYPL Geospatial Librarian Matt Knutzen working with attendees during our Citizen Cartography @ NYPL Workshop: Tracing 19th Century Manhattan workshop.

Participants learned how to trace information from maps and combine it with additional information to make a new and improved map with lots of info. We zoomed in on 19th century maps all the way down to building level and added spatial data to those buildings so that the map could be searched using this new, added info. We worked on a map of NYC from 1857. 

This is all part of the NYPL Map Rectifier, which is now in beta mode and can be used/experimented with/learned at home!  So, yes, you can became a Citizen Cartographer, too!  Visit for more info, including a great video with Matt Knutzen explaining this much better than we can. Follow The Lionel Pincus and Princess Firyal Map Division on Twitter @NYPLMaps.