There are hybrid cars, hybrid corn, hybrid cattle, so why not a hybrid park? City of Rocks in south central Idaho is one. City of Rocks National Reserve is part of the national park system, but there are no NPS personnel there.

Want to know what it takes to provide trails for visitors in Denali National Park? Come join the Denali trail crew on Saturday, June 1, and celebrate National Trails Day by helping with annual maintenance activities on the Mount Healy Overlook Trail.

In this, the second of a two-part series on how the National Park Service manages its concessions, David and Kay Scott look at how facilities at Hot Springs State Park in Arkansas are being used for some untraditional purposes.

Where are some of the best backcountry campsites in the world (as well as the national parks)? Michael Lanza, Northwest editor of Backpacker Magazine, shares his thoughts on 25 of the best places to pitch your tent.