640 acres = 1 square mile
1,280 acres = 2 square miles
1,920 acres = 3 square miles
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2,300,000 acres = 3,593.75 square miles
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640 acres = 1 square mile 1,000,000 acres = 1,562.5 square miles
1 square mile = 640 acres
3,437.5 sq miles.
80 000 square miles * (640 acres / square mile) = 51 200 000 acres. Over fifty million acres!
Not sure about arces, but 2.2 million acres 3437.5 sq miles.