It might have been the weather, the doldrums of the economy, or the fact that Great Smoky Mountains National Park's 75th anniversary is two years gone. Whatever the cause, visitation to the park continues to slide.

The Obama administration is proposing a change in the language of the Endangered Species Act that is worrisome to some conservation groups concerned that it could significantly diminish the preservation of species.

Just in time for the holidays, the national parks are heading to the Big Apple to check out the bright lights! And if you're in Times Square sometime during the next 38 days, keep an eye out for the grizzly bear and the cannon.

While many head to Yellowstone National Park in winter to explore by snowmobile, many visitors also like to get out on foot -- either with snowshoes or cross-country skis -- to move about the park. Here's the rundown on how to safely enjoy those activities in the park this winter.