US Population in 1790

This is a description of what can be seen on the first of a series of population density maps published for the US Census in 1898 by Henry Gannett. Originals can be found in the Library of Congress collection (https://www.loc.gov/resource/g3701gm.gct00010/?sp=1&r=0.008,0.653,1.099,0.686,0).