Map Illustrating the General Geological features of the Country West of the Mississippi River.
DESCRIPTION
This authentic hand-colored antique map was one of the first geological maps of the region. Its importance lies in its illustration of some of the mineral resources that helped spur westward migration and expansion.
Eleven separate geological formations are color-coded in a legend labeled 'Lava & other igneous Rocks'. It details mountains, watersheds, cities and roads. Cities, towns, forts, mountain passes, rivers and their tributaries are all duly noted.
The territory covered starts with the Ohio River Valley to the east and extends west to the Pacific and south to the states of Sonora and Chihuahua in Mexico. Political divisions include the large western territories of Washington, Oregon, Utah, New Mexico, Nebraska and Kansas.
CONDITION
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