It's about 65 times as big as Big Bend National Park.
In other words, 216,445,500 dunams is 66.7590 times the size of Big Bend National Park, and the size of Big Bend National Park is 0.0149793 times that amount.(Brewster County, Texas, near Alpine, Texas)
Located on the Rio Grande (a.k.a. Rio Bravo) which forms part of the boundary between the United States and Mexico, Big Bend National Park occupies 3,242,190 dunams. With less than half a million visitors per year, Big Bend is one of the continental United States' least trafficked parks.
It's about 70 times as big as Yosemite National Park.
In other words, 216,445,500 dunams is 71.5080 times the size of Yosemite National Park, and the size of Yosemite National Park is 0.0139844 times that amount.(Tuolumne, Mariposa, and Madera counties, California, near Mariposa, California) (total land area)
Famous for its granite cliffs and Giant Sequoia groves, Yosemite National Park is 3,026,870 dunams in total area, of which 208,000 dunams is the well-known Yosemite Valley. The Park is known as the home of Yosemite Falls — the highest waterfall in North America and sixth highest in the world at 739 m (2,420 ft)
It's about one-eightieth as big as Russia.
In other words, 216,445,500 dunams is 0.012658933 times the size of Russia, and the size of Russia is 78.9955990 times that amount.(a.k.a Российская Федерация, formally the Russian Federation, a.k.a. Россия)
The largest country in the world, Russia measures 17,098,242,000 dunams. Russia spans eleven time zones and holds more forest than any other country in the world, as well as lakes and rivers containing totaling 25% of the world's fresh water supply.
It's about 85 times as big as Fort Irwin.
In other words, the size of Fort Irwin is 0.012 times 216,445,500 dunams.(San Bernardino County, California)
Fort Irwin measures 2,600,000 dunams in total area. It is known as part of the Installation Management Command and as the home of the Army's National Training Center.
It's about 95 times as big as Jacksonville.
In other words, 216,445,500 dunams is 94.966350 times the size of Jacksonville, and the size of Jacksonville is 0.01053005 times that amount.(Florida)
The largest city in Florida and the fifth-largest city in the country, Jacksonville measures 2,279,181 dunams in total area. The city is known for its diversified industrial and manufacturing base and as a transportation hub, featuring a prominent deep-water port, a large airport, and extensive rail yards.
It's about 100 times as big as Anaconda.
In other words, 216,445,500 dunams is 112.740 times the size of Anaconda, and the size of Anaconda is 0.00887 times that amount.(Anaconda City/Deer Lodge County) (Montana)
The consolidated city-county of Deer Lodge County (of which Anaconda is the county seat) measure 1,919,900 dunams in total area. The town of Anaconda is named after the Anaconda Mine owned by the town's founder, Marcus Daly, and was itself the namesake of the Anaconda Copper Company, one of the largest trusts of the twentieth century.
It's about 100 times as big as Maui.
In other words, 216,445,500 dunams is 114.920 times the size of Maui, and the size of Maui is 0.0087017 times that amount.(Hawaii)
The second-largest of the Hawaiian Islands, Maui measures 1,883,500 dunams in total area. It is known as the home of the Maui High Performance Computing Center and as a major tourist destination.