These maps of the United States measure everything from where people live to where the sky is the most lit up. There are seventeen in all and if you feel like we here in the Commonwealth are crowded in you're right, at least compared to the Dakotas. That's not exactly news but when you see the visual it's striking! There's also a map of how land is used all over the country and when you see how much of our country is used just as a place for cattle to hang out you may be outraged. Or jealous.