Fall weather frolic, anyone? Rocky Mountain Arsenal National Wildlife Refuge in Commerce City, Colorado offers 10 miles of trails, golden fall colors and views of wildlife-- such as leaping mule deer, bison, prairie dogs, migrating birds and coyotes. Chilly weather means it's the time of year to dress warmly and take a stroll down your favorite path, listen to the rustling leaves and enjoy those fleeting moments of autumn. Photo by U.S. Fish and Wildlife Service.








