Volunteers are vital to managing our public lands. They help greet visitors, staff events, maintain trails and conserve wildlife habitat. Many volunteer a few hours a week, but one passionate volunteer has logged 25,000+ hours surveying wildlife at Bitter Lake National Wildlife Refuge in New Mexico -- that’s equal to working full time for more than 12 years. Dr. James "Jim" Montgomery, Jr.has been there longer than any other volunteer or or staff member at Bitter Lake Refuge. Jim is one of the Service's top record-holders for volunteer hours.