The U.S. Coast Survey map calculated the number of slaves in each county in the United States in 1860. Library of Congress In September of 1861, the U.S. Coast Survey published a large map ...

A Giant Picture of Snow Across the United States By TIM WALLACE MARCH 5, 2015 These composite satellite images compare the snow cover in February of 2013, 2014 and 2015.

To that end, here's a handy map from the free market-oriented Tax Foundation on which you can find a combination of the state sales tax rate and the average local rate as of the middle of 2013.

"Chinese Images of the United States is both a panorama and a close-up of how China perceives the United States and a great help to better understand the past, present, and future of Sino-U.S.