Maps of North Korea’s landscape have for decades been largely blank, but thanks to “a community of citizen cartographers,” Google Maps has managed to fill in some of the blanks.

Tapping input submitted to its Google Map Maker tool, the Web giant has added more detailed, up-to-date information to its maps of the reclusive nation, including streets, names, and other points of interest.

Jayanth Mysore, Google’s senior product manager of Map Maker, discussed in a company blog post the effort behind assembling the new data:

Photo Credit: Detail of Google Map of Pyongyang, North Korea. Google Maps