While this map does not show what the United States could look like in the year 2051, there are expected to be some climate-related changes in the coming decades. National Geographic writes : ...

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 ...

The left panel of a mural containing a relief map of the United States showing the west coast. In lower right, a banner with rolled end containing words "Relief Map / United S_____". Credit Line Gift ...