Generations of Americans got their first taste of national parks via car camping, that venerable tradition of driving to a park and setting up a tent or two in a roadside campground. That genre of park visitation seems to be slipping these days, though, and at least one car camping veteran blames it on economics -- there's more money to be made in lodgings than campgrounds.

The geothermal features in Yellowstone National Park were largely responsible for its designation as the world's first national park in 1872. These features are a global treasure. Nowhere else in the world can you find the array or number of geysers, hot springs, mud pots, and fumaroles found in Yellowstone. More than 75 percent of the world's geysers, including the world's largest are in Yellowstone’s seven major basins.

How do you think the National Park Service's Centennial Initiative (or Challenge, depending on whom you ask) should be funded? And how do you think those funds should be spent? There were quite a few suggestions tossed about in Washington today as both the House and Senate held hearings on legislation proposing ways to fund the Centennial Initiative.

There's a passage in Director's Order 53, one of the many documents that guide National Park Service management decisions, that warns of proverbial icebergs ready to assail superintendents who truly believe their mission is to "conserve the scenery and the natural and historic objects and the wildlife therein and to provide for the enjoyment of the same in such manner and by such means as will leave them unimpaired for the enjoyment of future generations."