UL Bend National Wildlife Refuge is a 56,048 acres (22,682 ha) protected area that is located in central Montana, United States. The refuge, located at the extreme southernmost tip of Phillips County, is managed and bordered on three sides by the Charles M. Russell National Wildlife Refuge and the Fort Peck Reservoir on the Missouri River. The refuge is managed as part of the Charles M. Russell National Wildlife Refuge Complex by the U.S. Fish and Wildlife Service.