Ancient Earth Works of the Cuyahoga Valley

This 1870 map appeared in Charles Whittlesey's book Ancient Earth Forts of the Cuyahoga Valley, Ohio. Note the earth mounds to the east of the Cuyahoga River in the city of Cleveland. | Source:

Charles Whittlesey, Ancient Earth Forts of the Cuyahoga Valley, Ohio (Cleveland: Fairbanks, Benedict & Co., 1871)

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