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!
Map of the boundary line between the states of New York and New Jersey in lands under water in Arthur Kill / "N.Y. commissioners: M.W. Hazeltine, Robert Moore, G.C. Hanus; N.J. commissioners: R.C. Bacot, W. M. Oliver, E.A. Stevens."
From Parts (In 6 layers) Depicts: 1890
|1890||1 day ago.||15 control points.|
Essex County, Left Page Plate: Township of Clinton / by and under the supervision of Roger H. Pidgeon.
From Atlas of Essex County, New Jersey : from actual surveys and official records (In 2 layers) Depicts: 1881
|1881||1 day ago.||6 control points.|
From Parts (In 4 layers) Depicts: 1881
|1881||2 days ago.||15 control points.|