Division of Geological Survey
- The state's oldest natural resources agency. Site provides maps, reports, and data files developed by the division.
- http://www.ohiodnr.com/geosurvey/

Division of Watercraft
- Provides registration and titling information, boating laws, and news releases.
- http://www.dnr.state.oh.us/watercraft/

Division of Wildlife
- Dedicated to conserving and improving the fish and wildlife resources and their habitats.
- http://www.dnr.state.oh.us/wildlife/

Ohio Department of Natural Resources (ODNR)
- Owns and manages more than 400,000 acres of land, licenses all hunting, fishing and watercraft in Ohio, and is responsible for overseeing and permitting all mineral extraction, monitoring dam safety, managing water resources, and promoting recycling and l
- http://www.dnr.state.oh.us/