Meredosia National Wildlife Refuge
Illinois
Meredosia National Wildlife Refuge is 3,645 acres and is located in an area that was historically known for it…
Michigan Islands National Wildlife Refuge
Michigan
Michigan Islands National Wildlife Refuge was established in 1947 as a breeding ground for migratory birds. Th…
Middle Mississippi River National Wildlife Refuge
Missouri
Middle Mississippi River National Wildlife Refuge was established as an individual refuge on May 31, 2000. The…
Midway Atoll National Wildlife Refuge
Hawaii
Midway Atoll National Wildlife Refuge was first established as an "overlay" refuge in 1988 to protect the area…
Mille Lacs National Wildlife Refuge
Minnesota
Mille Lacs National Wildlife Refuge was established in 1915 and is the smallest refuge in the National Wildlif…
Mingo National Wildlife Refuge
Missouri
The refuge contains 21,592 acres and lies in a basin formed in an ancient abandoned channel of the Mississippi…
Moosehorn National Wildlife Refuge
Maine
Moosehorn National Wildlife Refuge was established in 1937 to protect migratory birds. The Refuge has two divi…
Morgan Brake National Wildlife Refuge
Mississippi
Morgan Brake National Wildlife Refuge, established in 1977, encompasses about 7,400 acres in Holmes County alo…
Mortenson Lake National Wildlife Refuge
Colorado
The wetlands of Mortenson National Wildlife Refuge provide important water resources that support resting, nes…
Muscatatuck National Wildlife Refuge
Indiana
Muscatatuck National Wildlife Refuge was established in 1966 as a refuge to provide feeding and resting areas …
Nantucket National Wildlife Refuge
Rhode Island
Nantucket National Wildlife Refuge is one of eight national wildlife refuges that comprise the Eastern Massach…

Neal Smith National Wildlife Refuge
Iowa
Neal Smith National Wildlife Refuge was established in 1990 with the mission to actively protect, restore, rec…
North Platte National Wildlife Refuge
Nebraska
North Platte National Wildlife Refuge lies in the Panhandle of Western Nebraska. Established in 1916, the Refu…
Nowitna National Wildlife Refuge
Alaska
In 1980, more than 2 million acres of river valley, wetlands, forest and tundra became the Nowitna Refuge. Win…
Oahu Forest National Wildlife Refuge
Hawaii
On the upper slopes of the northern Ko‘olau Mountains exist some of the last remaining native intact forests o…
Ohio River Islands National Wildlife Refuge
West Virginia
The Ohio River Islands National Wildlife Refuge was established in 1990 to protect, conserve, and restore habi…
Oregon Islands National Wildlife Refuge
Oregon
From nearly every viewpoint on the Oregon coast, colossal rocks can be seen jutting out of the Pacific Ocean, …
Ottawa National Wildlife Refuge
Ohio
Much of Ottawa National Wildlife Refuge and the surrounding lands were once part of the Great Black Swamp. The…
Overflow National Wildlife Refuge
Arkansas
Overflow National Wildlife Refuge (NWR) is a wetland complex within the watershed of Overflow Creek, which flo…
Oxbow National Wildlife Refuge
Massachusetts
Oxbow National Wildlife Refuge, is one of the eight refuges that make up the Eastern Massachusetts National Wi…
Ozark Cavefish National Wildlife Refuge
Missouri
Ozark Cavefish National Wildlife Refuge was established in 1991 and is managed by the staff at Mingo National …
Ozark Plateau National Wildlife Refuge
Oklahoma
Ozark Plateau National Wildlife Refuge was established in 1986 (formerly Oklahoma Bat Caves National Wildlife …

Pahranagat National Wildlife Refuge
Nevada
The Nuwuvi (Southern Paiute and Chemehuevi) oral history and the geologic record indicate that thousands of ye…
Palmyra Atoll National Wildlife Refuge
Hawaii
Palmyra Atoll, along with Kingman Reef, are remnants of volcanoes from 65-120 million years ago. Palmyra Atoll…