Benton Lake (Montana)

Benton Lake National Wildlife Refuge
IUCN category IV (habitat/species management area)
Aerial view of Benton Lake
Location	Cascade County, Montana, USA
Nearest city	Great Falls, MT
Coordinates	47°39′57″N 111°19′59″W / 47.66583°N 111.33306°W / 47.66583; -111.33306Coordinates: 47°39′57″N 111°19′59″W / 47.66583°N 111.33306°W / 47.66583; -111.33306
Area	12,459 acres (50.42 km2)
Established	1929
Governing body	U.S. Fish and Wildlife Service
Website	Benton Lake National Wildlife Refuge

Benton Lake National Wildlife Refuge is a 12,459-acre (5,042 ha) National Wildlife Refuge (NWR) in the central part of the U.S. state of Montana. It lies in northern Cascade County, 12 mi (19 km) north of the city of Great Falls, Montana. Benton Lake NWR includes shortgrass prairie and seasonal wetlands, and is nearly surrounded by the Highwood Mountains to the east, Big Belt Mountains to the south, and the Rocky Mountains to the west. Benton Lake NWR is on the western edge of the northern Great Plains and much of the shallow lake is a 6,000-acre (2,400 ha) wetland.

During spring and fall migrations, up to 150,000 ducks, 2,500 Canada geese, 40,000 snow geese, 5,000 tundra swans, and perhaps as many as 50,000 shorebirds use the marsh. On average, 20,000 ducks are produced yearly, while colonies of Franklin's gulls may contain more than 10,000 nests. Shorebirds such as avocets, phalaropes, willets are commonly seen as are diving birds like the grebe. Raptors including bald eagles, golden eagle, prairie falcon, and peregrine falcon have been spotted as well. Of the approximately 240 species of birds recorded on the refuge, nearly 90 are known to nest here. The prairie sections of the refuge provide habitat for burrowing owls and sharp-tailed grouse.