- ParkNet (National Park Service)
- ParkNet is your gateway to the sites and services of the National Park Service.
- U.S. National Parks and Preserves listed on GORP
- Great Outdoor Recreation Pages feature outdoor recreation activities, attractions, gear, and active travel opportunities around the world!
- ODNR Division of Parks and Recreation
- Ohio State Parks directory, calendar of events, as well as general information about hiking trails, camping, hunting, fishing, boating, swimming, and resort lodges.