TopOSM -- topografic maps for Massachusetts, USA


Vidar pointed me to this beautiful map source that — unfortuanetly — is limited to Massachusetts, USA. The map is an interesting montage of several layers and data sources Lars Ahlzen has accomplished.
If you choose the openStreetMap as your background map in TrailRunner and view the area covered by this map server, TrailRunner now uses this source.

Read more about this project:
> What is TopOSM
> TopOSM online viever