(Image credit: Nik Freeman)

By shading census blocks with a population of zero, Nik Freeman created a map of where people don't live. While 47% of the United States is uninhabited, it's not all wild frontier. Sure, there's the rivers and national parks, but highways and infrastructure, shopping malls and parking lots count, too.

The U.S. Is Still 47% Frontier (Sort Of) | Co.Design