Google has is using crowd sourcing by enlisting a team of North Korean citizen to chart the country’s gulags, nuclear facilities and golf courses. Using its community tool Map Maker, Google has managed to map the unmappable.
From Google blog:
To build this map, a community of citizen cartographers came together in Google Map Maker to make their contributions such as adding road names and points of interest. This effort has been active in Map Maker for a few years and today the new map of North Korea is ready and now available on Google Maps.
While many people around the globe are fascinated with North Korea, these maps are especially important for the citizens of South Korea who have ancestral connections or still have family living in the closed nation.