An ice storm has prompted Mammoth Cave National Park officials to close all roads in the park as of 4 p.m. local time today.

Most Traveler readers know that Yellowstone National Park is considered to be the world’s first national park. Some, though, might not know that more than 130 nations have established parks or protected areas within their boundaries.

Jefferson National Expansion Memorial in St. Louis and the grounds around the "Gateway Arch" could look very different in the years to come, depending upon the outcome of a plan that is currently being developed. This plan could have far-reaching implications and public comments are currently being accepted. Here's what you need to know about this issue.

What in the world was Jim Hansen thinking back in the 1990s when, as a U.S. representative from Utah and chair of the House Resources Subcommittee on National Parks, Forests and Lands, he said Great Basin National Park should be removed from the National Park System?