NYPL Map Warper

NYPL Map Warper
Features georeferenced maps from the New York Public Library. The NYPL Map Warper is a tool for digitally aligning ("rectifying") historical maps from the NYPL's collections to match today's precise maps. Visitors can browse already rectified maps or assist the NYPL by aligning a map.


Pages that contain this Resource

Geographic Information Systems
/research/subject-guides/geographic-information-systems