- National Park Service
- History, guides, and educational materials for the National Parks.
- Recreational opportunities on federal lands searchable by state, activity, or agency.
- Ohio Department of Natural Resources
- Information on Ohio state nature preserves, fishing, boating, and wildlife.
- Ohio Department of Natural Resources - Division of Forestry
- Descriptions, maps, and directions for the 20 state forests.
- Ohio State Parks
- Complete information on Ohio’s 73 state parks, with listings by park activity (boating, fishing, camping) and by type of accommodation (lodges, cabins, campgrounds).
- Cincinnati Park Board
- Information on Cincinnati’s extensive park system, with a directory and a description of each park, schedule of upcoming concerts and other events, and a feature on the Krohn Conservatory.
- Cincinnati Recreation Commission
- Detailed information on City of Cincinnati recreational centers, golf courses and athletic programs.
- Hamilton County Park District
- Directions, maps, and descriptions of the district’s 11 parks and 5 nature preserves, as well as an event calendar.