To manage, conserve and protect Illinois'? natural, recreational and cultural resources, further the public's understanding and appreciation of those resources, and promote the education, science and public safety of Illinois'? natural resources for present and future generations. The Illinois Department of Natural Resources (IDNR) strongly impacts the economy of the State of Illinois. From State Parks to outdoor recreation to regulation and permitting, the economic benefits of IDNR activities reach statewide. Activities associated with IDNR support 90,000 jobs and at least $32 billion worth of economic impact annually.