Hanford Reach National Monument | |
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Location | Benton / Grant / Franklin / Adams counties, Washington, USA |
Nearest city | Richland, WA |
Coordinates | 46°35′00″N119°31′00″W / 46.58333°N 119.51667°W |
Area | 194,451 acres (78,692 ha) [1] |
Created | June 8, 2000 |
Governing body | U.S. Fish and Wildlife Service U.S. Department of Energy |
Website | Hanford Reach National Monument |
The Hanford Reach National Monument is a national monument in the U.S. state of Washington. It was created in 2000, mostly from the former security buffer surrounding the Hanford Nuclear Reservation. The area has been untouched by development or agriculture since 1943. For this reason, it is considered an involuntary park.
The monument is named after the Hanford Reach, the last non-tidal, free-flowing section of the Columbia River in the United States, and is one of eight national monuments administered by the U. S. Fish and Wildlife Service; part of the monument within the Hanford Site is also managed by the Department of Energy. President Bill Clinton established the monument by presidential decree in 2000. In May 2017, the Interior Department announced that Hanford Reach was one of 27 national monuments under review for possible rescinding of their designation. [2]
Ancestors of the Wanapum People, Yakama Nation, Confederated Tribes of the Colville, Confederated Tribes of the Umatilla Reservation and the Nez Perce used the land for hunting and resource collecting.[ citation needed ]
Geographically, the area is part of the Columbia River Plateau, formed by basalt lava flows and water erosion. The shrub-steppe landscape is harsh and dry, receiving between 5 and 10 inches (250 mm) of rain per year. The sagebrush-bitterbrush-bunchgrass lands are home to a wide variety of plants and animals, and the Hanford Reach provides one of the northwest's best salmon spawning grounds. Forty-eight rare, threatened, or endangered animal species have found refuge on the monument, as well as several insect species found nowhere else in the world. [3]
There are two main habitats in the Hanford Reach National Monument: desert and river.
Islands, riffles, gravel bars, oxbow ponds and backwater sloughs provide support to forty-three species of fish. Large numbers of fall Chinook salmon spawn in the Hanford reach. Federally threatened species such as the Upper Columbia River Spring Chinook, the Middle Columbia River Steelhead and the Upper Columbia River Steelhead use the reach for migration purposes. [4]
The refuge is famous for the elk located on the Arid Lands Ecology Area. Herd numbers vary by time of year with 150 seen during the spring/summer and 350 to 375 during the fall. The elk population reaches its peak in the winter with an average of 670. Archaeologists believed the elk had been in the region for the last 10,000 years. During the mid-19th century, first hand accounts mentioned the disappearance of the species. Rocky Mountain elk were reintroduced into the region during the 1930s, [5] as well as a natural recolonization event from the nearby cascade mountains during the difficult 1978 winter.
The dry, desert region is home to forty-two mammal species. Mice are the most abundant and include the deer mouse, western harvest mouse, northern grasshopper mouse. Mammals that inhabit this refuge include coyotes, skunks, beavers, mule deer, bobcats, river otters, minks, cougars and badgers.
![]() | This section needs to be updated.(August 2018) |
The monument is open from two hours before sunrise to two hours after sunset; some areas are open to the public and others are not:
Several sites in the adjacent Hanford Site including the B Reactor are part of the Manhattan Project National Historical Park and are accessible on public tours.
Benton County is a county in the south-central portion of the U.S. state of Washington. As of the 2020 census, its population was 206,873. The county seat is Prosser, and its most populous city is Kennewick. The Columbia River demarcates the county's north, south, and east boundaries.
The United States Fish and Wildlife Service is a U.S. federal government agency within the United States Department of the Interior which oversees the management of fish, wildlife, and natural habitats in the United States. The mission of the agency is "working with others to conserve, protect, and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people."
The National Wildlife Refuge System (NWRS) is a system of protected areas of the United States managed by the United States Fish and Wildlife Service (FWS), an agency within the Department of the Interior. The National Wildlife Refuge System is the system of public lands and waters set aside to conserve America's fish, wildlife, and plants. Since President Theodore Roosevelt designated Florida's Pelican Island National Wildlife Refuge as the first wildlife refuge in 1903, the system has grown to over 568 national wildlife refuges and 38 wetland management districts encompassing about 859,000,000 acres (3,476,200 km2).
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Rattlesnake Mountain is a 3,531 ft windswept treeless ridge overlooking the Hanford nuclear site. Parts of the western slope are privately owned ranchland, while the eastern slope is under the federal protection of the Arid Lands Ecology Reserve, a unit of the Hanford Reach National Monument, managed by the United States Fish and Wildlife Service. The mountain is the second highest point in Benton County, with its neighbor Lookout Summit surpassing it by only 98 ft.
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