Correction for the size of Grand Canyon National Park
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How big is 8,940,000,000,000 circular inches?
It's about nine-tenths as big as Grand Canyon National Park
The size of Grand Canyon National Park is about 9,730,645,560,000 circular inches.
(Coconino County and Mohave Counties, Arizona, near Fredonia and Grand Canyon, Arizona)
Containing the 446 km (277 mi) Grand Canyon gorge, Grand Canyon National Park covers 9,730,643,820,000 circular inches.