Mammoth Cave National Park is about 1.5 times bigger than Staten Island.

Staten Island is approximately 150 km² (58 sq mi), while Mammoth Cave National Park is approximately 219 km² (84 sq mi), making Mammoth Cave National Park 46% larger than Staten Island.
Tip: This to-scale comparison of Staten Island vs. Mammoth Cave National Park uses the Mercator projection, which distorts the size of regions near the poles.

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