The area of Isla Gorge National Park is 78.5 square kilometers.
The area of Isla Magdalena National Park is 1,576.0 square meters.
The area of Barron Gorge National Park is 28 square kilometers.
The area of Tully Gorge National Park is 543 square kilometers.
The area of Porcupine Gorge National Park is 54.1 square kilometers.
The area of Cania Gorge National Park is 30 square kilometers.
The area of Geikie Gorge National Park is 31.36 square kilometers.
The area of Windjana Gorge National Park is 20.5 square kilometers.
The area of Isla Bastimentos National Marine Park is 132,260.0 square meters.
The area of Hell Hole Gorge National Park is 127 square kilometers.
The area of Flaming Gorge National Recreation Area is 839.168 square kilometers.
The area of Gunnison Gorge National Conservation Area is 254.321 square kilometers.
Gunnison Gorge National Conservation Area was created in 1999.