Correction for the size of Alcatraz
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How big is 567.02 nanoacres?
It's about 0.00000003 times as big as Alcatraz
The size of Alcatraz is about 22,000,000,000 nanoacres.
(a.k.a. The Rock) (California)
Alcatraz Island measures 22,000,000,000 nanoacres. It is known a part of the Golden Gate National Recreation Area, and has historically served as a lighthouse, fort, military prison, and — most famously — a federal prison.