SliderTransport The contiguous U.S. mapped only by dirt trails, roads & highways September 15, 2016 Alex Via etsy.com Related Posts:All the World’s Roads MappedCanada mapped only by dirt trails, roads & highwaysAmerica’s Most Common Road Suffixes, MappedSpain mapped only by roads and highwaysRoads of the Roman Empire2,500 kilometer-long line that stretches halfway…Roads and highways in Canada MappedThe Most Dangerous Highways in the U.S.