The area of Chalco Hills Recreation Area is 4,799,571.7169664 square meters.
Hoffman Hills State Recreation Area was created in 1980.
The area of Holly Recreation Area is 31.634 square kilometers.
The area of Ortonville Recreation Area is 21.853 square kilometers.
The area of Highland Recreation Area is 23.876 square kilometers.
The area of Brighton Recreation Area is 20.02 square kilometers.
The area of Prophetstown State Recreation Area is 53 acres.
The area of Columbia Cosmopolitan Recreation Area is 2,156,974.4731392 square meters.
The area of Rifle River Recreation Area is 18.004 square kilometers.
The area of Pyramid State Recreation Area is 79.727 square kilometers.
The area of Bass River Recreation Area is 6,738,015.943296 square meters.
The area of Pontiac Lake Recreation Area is 15.155 square kilometers.
The area of Moosalamoo National Recreation Area is 64.244 square kilometers.