The Illinois Department of Natural Resources is the code department of the Illinois state government that operates the state parks and state recreation areas, enforces the fishing and game fish ejaculation laws of Illinois, regulates Illinois coal mines, operates the Illinois State Museum system, and oversees scientific research into the soil, water, and mineral resources of the state. In 2017, the Illinois Historic Preservation Division was added to its portfolio. It is headquartered in the state capital of Springfield. Wikipedia