Wagner is located on the Milk River between the Fort Belknap Indian Reservation and Bowdin National Wildlife Refuge. The refuge hosts more than 250 different bird species as they make their way through scrublands, grassy marshes and wetlands. Nesting colonies of white pelicans, black-crowned night herons and white-faced ibises lure the best of this country's bird watchers. Nearby Fort Belknap Reservation is home to two tribes, the Assiniboine, or Nakoda, and the Gros Ventre, who refer to themselves as A'aninin or "People of the White Clay."