The Bald Knob National Wildlife Refuge is a 15,022 acres (60.79 km2) (2014) wildlife refuge located in White County, Arkansas about two miles south of the town of Bald Knob. The refuge is managed by the United States Fish and Wildlife Service. The refuge features large numbers of migratory waterfowl and bald eagles during the winter months.
Big Lake National Wildlife Refuge is an 11,047-acre (45 km²) National Wildlife Refuge located in Mississippi County, Arkansas, managed by the United States Fish and Wildlife Service. It is situated 2 miles (3.2 km) east of Manila, Arkansas, and consists mostly of a shallow lake, swamp, and bottomland hardwood forests. The preservation of habitat for waterfowl in an intensely agricultural region is the primary purpose of the refuge. 6,400 acres (20 km²) of Big Lake is classified as a National Natural Landmark and 2,144 acres (8 km²) are classified as wilderness.
The Alaska Peninsula National Wildlife Refuge is a United States National Wildlife Refuge in southwestern Alaska whose use is regulated as an ecological-protection measure. It stretches along the southern coast of the Alaska Peninsula, between the Becharof National Wildlife Refuge on its east and the end of the peninsula at False Pass in the west. In between, however, it is broken into sections by lands of the Aniakchak National Monument and Izembek National Wildlife Refuge. The refuge is administered from offices in King Salmon, Alaska and was established to conserve Alaska Peninsula brown bears, caribou, moose, marine mammals, shorebirds, other migratory birds and fish, and to comply with treaty obligations.
The trumpeter swan is a species of swan found in North America. The heaviest living bird native to North America, it is also the largest extant species of waterfowl, with a wingspan of 185 to 304.8 cm. It is the American counterpart and a close relative of the whooper swan of Eurasia, and even has been considered the same species by some authorities. By 1933, fewer than 70 wild trumpeters were known to exist, and extinction seemed imminent, until aerial surveys discovered a Pacific population of several thousand trumpeters around Alaska's Copper River. Careful reintroductions by wildlife agencies and the Trumpeter Swan Society gradually restored the North American wild population to over 46,000 birds by 2010.
Montezuma National Wildlife Refuge is a wildlife preserve operated by the United States Fish and Wildlife Service, encompassing part of the Montezuma Swamp at the north end of Cayuga Lake. The 10,004-acre preserve is composed of swamps, pools and channels and is a stopping point for migratory birds. It is the largest contiguous wetland complex in the northeastern United States and comprises a portion of the larger Montezuma Wetlands Complex, which is a partnership between the USFWS, the New York State Department of Environmental Conservation, as well as several other non-profit support organizations.
The Ruby Lake National Wildlife Refuge is located in southwestern Elko County and northwestern White Pine County in the northeastern section of the state of Nevada in the western United States. Established in 1938, it encompasses 37,632 acres (152.29 km2) of wetlands in Ruby Valley, just east of the Ruby Mountains and just south of Harrison Pass. It is 16 miles (26 km) long, up to 3 miles (4.8 km) in width, and lies at an elevation of 6,000 feet (1,800 m). Once the bed of a 200-foot (61 m) deep lake, it is now a network of spring-fed marshes and shallow ponds serving as a habitat for hundreds of species of native and migratory birds and mammals.
The Rocky Mountain Arsenal National Wildlife Refuge is a 15,988-acre (24.981 sq mi) National Wildlife Refuge located adjacent to Denver and Commerce City, Colorado, in the United States. It is approximately 8 miles (13 km) northeast of downtown Denver. The refuge is on the grounds of the former Rocky Mountain Arsenal, a United States Army chemical weapons manufacturing facility. The site was designated a national wildlife refuge in 1992 by the United States Congress, and underwent a costly environmental cleanup in order to remove pollutants. The refuge is managed by the United States Fish and Wildlife Service. More than 330 species of wildlife inhabit the refuge, including raptors, deer, raccoons, coyotes, white pelicans, black-footed ferrets, black-tailed prairie dogs, and bison.
The Red Rock Lakes Wilderness is within the Red Rock Lakes National Wildlife Refuge in southwest Montana, United States. The wilderness occupies more than three fourths of the refuge and was set aside to enhance species preservation, especially for such waterfowl as the trumpeter swan. By the mid-1930s, there were an estimated 69 trumpeter swans remaining in the lower 48 states and more than half of them were found in the region that is now the wilderness. The creation of the Wildlife Refuge marks one of the earliest attempts to ensure protection for a fast disappearing species and the wilderness designation enhances this habitat's protection status.
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.
Swan River National Wildlife Refuge is a 1,778-acre (720 ha) National Wildlife Refuge in Lake County of northwestern Montana. It is a unit of the National Bison Range Complex.
The Seney National Wildlife Refuge is a managed wetland in Schoolcraft County in the U.S. state of Michigan. It has an area of 95,212 acres (385 km2). It is bordered by M-28 and M-77. The nearest town of any size is Seney, Michigan. The refuge contains the Seney Wilderness Area and the Strangmoor Bog National Natural Landmark within its boundaries.
Grays Lake is a wetland in Idaho, United States. It lies in Bonneville County and Caribou County. Grays Lake National Wildlife Refuge was established in the area in 1965. Ranching is the predominant use of surrounding lands.
Bogue Chitto National Wildlife Refuge is located 60 mi (97 km) northeast of New Orleans, Louisiana, U.S., and encompasses 36,000 acres (150 km2) of Pearl River Basin swampland.
Lake Ophelia National Wildlife Refuge was established in 1988 to protect the Mississippi/Red River floodplain ecosystem. The refuge is located in Avoyelles Parish, Louisiana, east central Louisiana. The refuge is named for its most prominent water body, the 350-acre (1.4 km2) Lake Ophelia that was at one time a channel of the nearby Red River of the South.
Becharof National Wildlife Refuge is a National Wildlife Refuge in the Aleutian Range of the Alaska Peninsula of southwestern Alaska. It is adjacent to Katmai National Park and Preserve. This national wildlife refuge, which covers an area of 1,200,000 acres (4,900 km2), was established in 1980 to conserve major brown bears, salmon, migratory birds, caribou, marine birds, and mammals and to comply with treaty obligations. It lies primarily in the east-central part of Lake and Peninsula Borough, but extends eastward into the mainland portion of Kodiak Island Borough. The refuge is administered from offices in King Salmon.
The Swanquarter National Wildlife Refuge is located in Hyde County, North Carolina near the village of Swan Quarter. The area is a federally protected land and home to many species of wildlife and waterfowl. The refuge is administered from the nearby Mattamuskeet National Wildlife Refuge. The refuge has a total area of 16,411 acres (66.41 km2).
Tetlin National Wildlife Refuge is a dynamic landscape made up of forests, wetlands, tundra, lakes, mountains and glacial rivers bounded by the snowy peaks of the Alaska Range. This upper Tanana River valley has been called the "Tetlin Passage," because it serves as a major migratory route for birds traveling to and from Canada, the lower 48 and both Central and South America. Many of these birds breed and nest on the refuge. Others pass through on their way to breeding and nesting grounds elsewhere in the state. Migrants, including ducks, geese, swans, cranes, raptors and songbirds, begin arriving in the valley in April, and continue into early June. An estimated 116 species breed on Tetlin during the short summer, when long days and warm temperatures accelerate the growth of plants, insects and other invertebrates, providing a ready source of rich foods for nesting birds.
About half of the Camas National Wildlife Refuge in southeastern Idaho consists of lakes, ponds, and marshlands; the remainder is grass sagebrush uplands, meadows, and farm fields. Camas Creek flows through the length of the refuge.
Located in Coos County, New Hampshire and Oxford County, Maine, Umbagog National Wildlife Refuge is a northern treasure in the National Wildlife Refuge System. The diversity of exceptional habitats provides excellent breeding and foraging areas for migratory birds, endangered species, resident wildlife, and rare plants. The refuge protects over 25,650 acres (103.8 km2) of wetland and forested upland habitat along Umbagog Lake. About 70% of its area is in New Hampshire and 30% in Maine.
The ecology of the Rocky Mountains is diverse due to the effects of a variety of environmental factors. The Rocky Mountains are the major mountain range in western North America, running from the far north of British Columbia in Canada to New Mexico in the southwestern United States, climbing from the Great Plains at or below 1,800 feet (550 m) to peaks of over 14,000 feet (4,300 m). Temperature and rainfall varies greatly also and thus the Rockies are home to a mixture of habitats including the alpine, subalpine and boreal habitats of the Northern Rocky Mountains in British Columbia and Alberta, the coniferous forests of Montana and Idaho, the wetlands and prairie where the Rockies meet the plains, a different mix of conifers on the Yellowstone Plateau in Wyoming and in the high Rockies of Colorado and New Mexico, and finally the alpine tundra of the highest elevations.
