This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
US smarteststate. Colorcoded map of ranking of states with the smartest in blue Data is based upon the findings of Morgan Quitno morganquitno htm which is available to the public Cnelson talk The map is my own creation based upon this image Image US state outline map from the USGS March Cnelson talk Cnelson en Original upload