Dotting the sandstone floors of the Colorado plateau are countless potholes -- shallow depressions that hold water only for short periods after rains. But during those wet periods, these potholes come to life with a variety of intriguing creatures, including fairy shrimp.

There's more than just changing leaves happening in America’s national parks this fall and here is a small sampling of some of the activities that are taking place during September, October, and November. Pack up the car, grab your Passport To Your National Parks® book, and spend some time exploring the parks this autumn!

Should the Hetch Hetchy Valley of Yosemite National Park be drained of its reservoir and restored?

Glacier Bay National Park and Preserve is a hard place to reach any time of year, let alone the fall. But that doesn't mean you can glimpse this beautiful corner of Alaska.