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 The Borough (In 3 layers) Depicts: 1969
|1969||about 7 hours ago.||28 control points.|
A chart of the sea coast of New Foundland, New Scotland, New England, New York, New Jersey, with Virginia and Maryland.
from Charts and maps (In 1 layer) Depicts: 1748
|1748||about 10 hours ago.||3 control points.|
Bronx, V. A, Plate No. 38 Map bounded by Saratoga Ave., Morris Park Ave., Westchester Creek, Williamsbridge Rd.
From Vol. A (In 2 layers) Depicts: 1905
|1905||about 12 hours ago.||4 control points.|