File:US Grand Prix locations.png

Summary
"US Grand Prix locations" by http://commons.wikimedia.org/wiki/User:Gary_King - http://upload.wikimedia.org/wikipedia/commons/7/78/United_States_Administrative_Divisions_Blank.png. Licensed under CC BY-SA 3.0 via Commons - https://commons.wikimedia.org/wiki/File:US_Grand_Prix_locations.png#/media/File:US_Grand_Prix_locations.png