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!
A new county map of the state of Pennsylvania and adjoining states showing the route of the central & other railroads &c. &c. / Reduced from the large state map by J.W. Otley ; engraved on stone by Friend & Aub, 80 Walnut St., 2nd door below 4th.
From Whole (In 6 layers) Depicts: 1852
|1852||about 7 hours ago.||5 control points.|
Map of the rail-roads of the State of New York / prepared under the direction of Van Rensselaer Richmond, State Ingineer sic and Surveyor ; Geo. R. Perkins, Dep. State Ingineer sic and Surveyor ; drawn by David Vaughan.
From Whole (In 1 layer) Depicts: 1858
|1858||about 9 hours ago.||6 control points.|
Brooklyn, Vol. 3, Double Page Plate No. 4; Part of Ward 32, Section 23; Map bounded by Avenue K, Ralph Ave., Avenue O, Flatbush Ave.; Including Flatlands Ave., E. 37th St., Avenue E, E. 38th St., Hubbard PL., E. 40th St.; Sub Plan; Map bounded by A...
From Volume 3 (In 2 layers)
|2 days ago.||5 control points.|