Forested hills slope down to the banks of the …

Forested hills slope down to the banks of the mighty Mississippi River at Port Louisa National Wildlife Refuge in Iowa. The yellow leaves of maple trees are catching the sunlight, providing a lovely and soothing atmosphere for hikers, anglers, kayakers and photographers. Other autumn visitors include thousands of migrating birds pausing at the refuge as they make their way south. Photo by Jessica Bolser, U.S. Fish and Wildlife Service.