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. Play the video above to tour the site and learn how to rectify a map yourself.
Everyone is welcome to participate!
from A-Z (In 2 layers) Depicts: 1777
|1777||about 2 hours ago.||30 control points.|
Topographical atlas of the city of New York, including the annexed territory showing original water courses and made land. / prepared under the direction of Egbert L. Viele.
From Topographical atlas of the city of New York, including the annexed territory showing original water courses and made land (In 1 layer) Depicts: 1874
|1874||about 11 hours ago.||16 control points.|
Plate 36: Bounded by Bronx River Edgewater Road, Long Island Sound and West Chester Road; Inset of Wards Island.
From Atlas of the entire city of New York : complete in one volume ; from actual surveys and official records / by G. W. Bromley & Co. 1879 (In 2 layers) Depicts: 1879
|1879||2 days ago.||10 control points.|