While commercial drone businesses gear up, large parts of US airspace are already off-limits to drones. A new map project called Don't Fly Drones Here takes a look at exactly where the remote crafts have been banned, through the magic of open-source maps.

There are three major no-fly zones: national parks, army bases, and anything within a five-mile radius of a major airport. But while the list seems simple enough, the effects on the map are less predictable, with big chunks of both Manhattan and the Bay Area declared off-limits thanks to local airports. The list doesn't take into account local bans, like the one proposed in New York, but the project's open Github repository should make it easy to update as the project develops.