If you're flexible enough to take a fall trip to some of the iconic national parks in the Western United States, there are a number of lodges that are reporting late-season availability. Lodges in Yellowstone, Bryce Canyon, Crater Lake, Grand Canyon, and Death Valley national parks all show some rooms available during the months of September and October.

Shuttle bus systems are growing in popularity as one way to reduce the impacts of private vehicles on parks—and on the experience of visitors. Here's a look at some of those systems at NPS sites around the country.

One of the best star shows in the National Park System is just a few weeks off. This year's Astronomy Festival at Bryce Canyon National Park, the ninth annual, will not only feature gazing at night skies but also model rocketry and a variety of talks on night skies and nocturnal animals.

If you were lucky enough to be in Bryce Canyon National Park on Tuesday, you would have been surrounded by one of the prettiest days of the year, as these photos clearly show.