We have used BD Topo as the basis of the Outdooractive map of France.
BD Topo is a digital representation of reality and contains as vectors not only man-made features (buildings, streets) but also natural objects (terrain, relief). It is the most accurate and complete data set available for France.
With BD Topo we are able to create a high quality map with unique styling for summer and winter. Using this data also allows us to create our activity-based routing- meaning that the map and your route will always fit together perfectly.