How the Georeferencer works

Please help us locate our scanned maps on top of modern maps! To get a fast explanation of the process just watch the video on the right side.

By clicking on the button bellow you will be assigned with a random scanned map. You have to find on this old map a place visible on a modern map as well and click on both. Once you do that for 3 or more places the scanned map can be overlayed and visualized in Google Earth for the first time ever - just thanks to your contribution!

We appreciate your help. Let's start...

Fix the location of a map

Top contributors & pilot progress

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