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 Atlas of Columbia County, New York. From actual surveys and official records. Compiled & published by D. G. Beers & Co. (In 1 layer) Depicts: 1873
|1873||about 3 hours ago.||45 control points.|
Part of Ward 5. Map bound by Arthur Kill or Staten Island Sound, Arthur Kill Road Fresh Kills RD, Pleasant Ave, Guyon Ave, Clay Pit Road, Winant PL, Sharrotts Road, Ellis Road
from Atlas of the city of New York, borough of Richmond, Staten Island. From actual surveys and original plans, by George W. and Walter S. Bromley. (In 1 layer) Depicts: 1917
|1917||about 6 hours ago.||4 control points.|
Page 18: Bounded by W. 135th Street, Eighth Avenue, W. 115th Street and Morningside Heights Hudson River.
from Sackersdorf Farm Set. (In 1 layer) Depicts: 1868
|1868||about 24 hours ago.||4 control points.|