National Park Service officials manipulated agency regulations to reduce the number of acres eligible for wilderness designation by 40,000 at Big Cypress National Preserve so more of the preserve could be open to off-road vehicles, according to Public Employees for Environmental Responsibility.

"A river runs through it" could describe San Antonio Missions National Historical Park, but the current version of the San Antonio River bears little resemblance to the waterway of years past. The first phase of a project to both restore the river to more natural conditions and create improved trails and public access has just been completed.

The St. Mary Lodge and Resort on the eastern edge of Glacier National Park has been sold to a Phoenix-based corporation that operates other lodges in the park under its Glacier Park, Inc., subsidiary.

If you're interested in the natural sciences and would like to volunteer some time amidst some of the most spectacular scenery in America this summer, you may be interested in Glacier National Park's Citizen Scientists program. Training sessions are coming up soon.