iPhone & Android app / Preparing for release
BackDoor Map
Remember the entrance.
Keep the details.
Save the buildings you visit, mark your own entrance and keep private notes. Previously saved places and entrance information stay useful offline.
Community entrance reports add another perspective. Your personal pin and notes remain separate, even when the public pin changes.
backdoormap.com: dedicated website coming soon. The overview is available here. Public app downloads are not available yet.
Reported pins are not permission to enter. Follow posted signs and site rules. New searches need internet; offline map tiles are not guaranteed.