The area of Grand Portage National Monument is 2,873,268.0599040003 square meters.
Voyageurs National Park Pipestone National Monument Grand Portage National Historic Site Mississippi National River and Recreation Area St. Croix National Scenic River
The area of Grand Staircase-Escalante National Monument is 7,689.027 square kilometers.
The area of Hovenweep National Monument is 3,172,735.4351616 square meters.
The area of Dinosaur National Monument is 853.255 square kilometers.
The area of Ocmulgee National Monument is 2,839,031.654570496 square meters.
The area of Chiricahua National Monument is 48.502 square kilometers.
The area of Cedar Breaks National Monument is 2,439.36 square kilometers.
The area of Vermilion Cliffs National Monument is 1,189.776 square kilometers.
The area of Montezuma Castle National Monument is 3,477,342.318075648 square meters.
The area of Yucca House National Monument is 137,067.02702668798 square meters.
The area of Newberry National Volcanic Monument is 224.601 square kilometers.
The area of Aztec Ruins National Monument is 1,286,900.3423232 square meters.