A newspaper reported Thursday that Gettysburg National Military Park Superintendent John Latschar is stepping down as the result of the discovery of pornography on his office computer. National Park Service officials had no comment, citing Privacy Act restrictions regarding personnel matters.

Need to identify invasive weeds at Santa Monica Mountains National Recreation Area? There's an app for that!

Tamarisk, or salt cedar, is a highly invasive plant that has caused plenty of problems in the West. A test project to control the pest with the tamarisk leaf beetle has been underway since 2001 in parts of the country, but a few of the beetles have turned up unexpectedly in the upper end of the Grand Canyon. Will this prove to be a case of "Oh, my," or "Oh, me"?

Frivolous calls to 911 centers are a growing problem all across the country, but when the call comes from a remote location in Grand Canyon National Park, both the expense and risks of an emergency response increase dramatically. A group of hikers recently activated their SPOT device not once, not twice, but three times on the same trip.