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!
Colton's map of the United States of America, the British provinces, Mexico and the West Indies / "Entered according to act of Congress, December, in the year 1846, by Joseph H. Colton in the Clerks Office of the District Court for the Southern Distri...
From Whole (In 4 layers) Depicts: 1853
|1853||about 6 hours ago.||5 control points.|
Topographical map of Massachusetts / Made by order of the Legislature ; Simeon Borden, Superintendent, 1844 ; engraved by George G. Smith.
From Massachusetts (In 5 layers) Depicts: 1844
|1844||about 8 hours ago.||8 control points.|
Brooklyn V. 3, Plate No. 33 Map bounded by Lorimer St., Harrison Ave., Delmonico PL., Hopkins St., Marcy Ave.
From Atlas 70. Vol. 3, 1904. (In 1 layer) Depicts: 1884
|1884||about 14 hours ago.||4 control points.|