Is 0.00000000630 virgates as big as Alcatraz?
It's about 0.000000009 times as big as Alcatraz
The size of Alcatraz is about 0.730 virgates.
(a.k.a. The Rock) (California)
Alcatraz Island measures 0.730 virgates. 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.
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