How to use this tool
The NYPL Map Rectifier 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!
Most Recently Rectified Maps
| Map | Title | Last modified | Status |
|---|---|---|---|
|
from Sectional aerial maps of the City of New York / photographed and assembled under the direction of the chief engineer, July 1st, 1924. (In 2 layers)
Depicts: 1924
Bibiliographic records: Digital Gallery |
CATNYP
|
2 minutes ago. | 6 control points. |
|
from Sectional aerial maps of the City of New York / photographed and assembled under the direction of the chief engineer, July 1st, 1924. (In 2 layers)
Depicts: 1924
Bibiliographic records: Digital Gallery |
CATNYP
|
about 1 hour ago. | 5 control points. |
|
from Sectional aerial maps of the City of New York / photographed and assembled under the direction of the chief engineer, July 1st, 1924. (In 2 layers)
Depicts: 1924
Bibiliographic records: Digital Gallery |
CATNYP
|
about 3 hours ago. | 4 control points. |