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 the city of New York, borough of Manhattan. From actual surveys and official plans / by George W. and Walter S. Bromley. (In 1 layer) Depicts: 1911
|1911||about 2 hours ago.||40 control points.|
Brooklyn V. 2, Plate No. 19 Map bounded by Montague St., Henry St., Clark St., Tillary St., Adams St., Myrtle Ave.
From Atlas 67. Vol. 2, 1904. (In 1 layer) Depicts: 1884
|1884||about 2 hours ago.||7 control points.|
Vol. 6. Plate, K. Map bound by Bushwick Inlet, N.14th St., Fifth St., N.6th St., East River; Including Banker St., N.13th St., N.12th St., N.11th St., N.10th St., N.9th St., N.8th St., N.7th St., First St., Second St., Third St., Fourth St.
from Detailed estate and old farm line atlas of the city of Brooklyn : complete in six volumes ... from official records, private plans, and actual surveys ... / by G.M. Hopkins, C.E. (In 1 layer) Depicts: 1880
|1880||about 2 hours ago.||4 control points.|