A short guide to making a freeway and county map using available data
-
Download freeway data from OpenStreetMap http://overpass-turbo.eu/s/gXl
-
Download county data from the U.S. Census Bureau ftp://ftp2.census.gov/geo/tiger/TIGER2015/COUNTY/
-
Download cropping file ("Download states and provinces") from Natural Earth http://www.naturalearthdata.com/downloads/10m-cultural-vectors/
-
Select California counties and clip against the Natural Earth file
-
Style
-
Style some more
-
Export your map from QGIS
Sources: OpenStreetMap, Natural Earth and U.S. Census Bureau
More reading: Use OpenStreetMap data in Mapbox Studio