I’ve been working on mapping most of Champagne’s subregions. Montagne de Reims, Côte des Blancs, Vallée de la Marne and soon with the Aube.
This map I added parcelles cadastrale (Plot land registry) from France’s data sources, and another layer with some of the lieux-dits.
To include the entire region, I had to make a big image, so this is a large file. Click on the image to enlarge in a new window.