It is the largest national park in the United States by area, covering an area of 20,587 mi² (53,321 km²), or over 13 million acres (53,000 km²).
Biscayne National Park, FL is 172,990 acres.
93,533 acres in total.
35835 acres
Katmai National Park is 4,093,077 acres.
9000 acres
The park is 146,597 acres.
604,160 acres in total.
It is 699,983 acres.
249,600 acres.
The National Zoo in Washington, DC, opened in 1889 and has an area of 163 acres.
Glacier National Park's area is 333,350 acres.
46,765 acres.