United States Summer Temperature 1923 - Historical Map Print vintage Chicago There are several unnamed mountain

There are several unnamed mountain ranges in the interior which are possibly an embryonic representation of the Mountains of Kong - a presumed source of the Niger that was popularized in the late 18th and early 19th century

Insets detail the 'Island of Amoy' and Canton (near Hong Kong)

Ohio's many canal routes are highlighted in blue while the state's still fledgling railroad network appears in orange

part of Å’uvres du Sr

Glen Arbor

United States Summer Temperature 1923 - Historical Map Print vintage Chicago There are several unnamed mountainMade to order print of the United States Summer Temperature map from the 1923 Atlas of American Agriculture. A historical map reproduction for wall art, offices, studies, and collectors.