Concept
Version 7
Created by Boundless
Interstate Relations
The United States
Americans live in a federal system of 50 states that, together, make up the United Sates of America.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"US map - states."
http://commons.wikimedia.org/wiki/File:US_map_-_states.png
Wikimedia
Public domain.