Sheldon National Wildlife Refuge
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The Sheldon National Wildlife Refuge is a
national wildlife refuge National Wildlife Refuge System is a designation for certain protected areas of the United States managed by the United States Fish and Wildlife Service. The National Wildlife Refuge System is the system of public lands and waters set aside to c ...
on the northern border of the U.S. state of
Nevada Nevada ( ; ) is a U.S. state, state in the Western United States, Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. N ...
. A very small part extends northward into
Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...
. It is managed by the
United States Fish and Wildlife Service The United States Fish and Wildlife Service (USFWS or FWS) is an agency within the United States Department of the Interior dedicated to the management of fish, wildlife, and natural habitats. The mission of the agency is "working with othe ...
(USFWS) as the Nevada component of the
Sheldon-Hart Mountain National Wildlife Refuge Complex The Sheldon-Hart Mountain National Wildlife Refuge Complex is a management unit of the United States Fish and Wildlife Service. It comprises two wildlife refuges, the Hart Mountain National Antelope Refuge in Oregon and the Sheldon National Wildlif ...
, which is headquartered in
Lakeview, Oregon Lakeview is a town in Lake County, Oregon, United States. The population was 2,418 at the 2020 census. It is the county seat of Lake County. The city bills itself as the "Tallest Town in Oregon" because of its elevation, above sea level. Lak ...
. The Sheldon Refuge was noted for its population of wild horses, now all removed.


History

In 1931, the refuge was established under
executive order In the United States, an executive order is a directive by the president of the United States that manages operations of the federal government. The legal or constitutional basis for executive orders has multiple sources. Article Two of th ...
to carry out three central goals: First, the refuge was to provide a habitat for the "antelope" (more properly called the
pronghorn The pronghorn (, ) (''Antilocapra americana'') is a species of artiodactyl (even-toed, hoofed) mammal indigenous to interior western and central North America. Though not an antelope, it is known colloquially in North America as the American a ...
), an animal whose population was in decline during the early 1900s. Second, conservation efforts were put forth to protect native fish, wildlife, and plants. The refuge contains the Virgin Valley Opal Mining District which was grandfathered-in with its mineral rights. Finally, the refuge was to serve as an inviolate migratory bird sanctuary.


Description

Advocates characterize Sheldon as one of the few intact
sagebrush steppe Sagebrush steppe is a type of shrub-steppe, a plant community characterized by the presence of shrubs, and usually dominated by sagebrush, any of several species in the genus ''Artemisia''.Great Basin The Great Basin is the largest area of contiguous endorheic basin, endorheic watersheds, those with no outlets, in North America. It spans nearly all of Nevada, much of Utah, and portions of California, Idaho, Oregon, Wyoming, and Baja California ...
, one that hosts a variety of wildlife endemic to the unique environment. The Sheldon National Wildlife Refuge occupies an arid zone of volcanic terrain. The elevation ranges from to above sea level. Geothermal
hot spring A hot spring, hydrothermal spring, or geothermal spring is a spring produced by the emergence of geothermally heated groundwater onto the surface of the Earth. The groundwater is heated either by shallow bodies of magma (molten rock) or by circ ...
s provide some water to a swimming pool and shower house in the campground.


Flora and fauna

The dominant plant life consists of drought-tolerant species such as
sagebrush Sagebrush is the common name of several woody and herbaceous species of plants in the genus ''Artemisia''. The best known sagebrush is the shrub ''Artemisia tridentata''. Sagebrushes are native to the North American west. Following is an alph ...
,
juniper Junipers are coniferous trees and shrubs in the genus ''Juniperus'' () of the cypress family Cupressaceae. Depending on the taxonomy, between 50 and 67 species of junipers are widely distributed throughout the Northern Hemisphere, from the Arcti ...
,
mountain mahogany ''Cercocarpus'', commonly known as mountain mahogany, is a small genus of at least nine species of nitrogen-fixing flowering plants in the rose family, Rosaceae. They are native to the western United States and northern Mexico, where they grow i ...
,
bitterbrush ''Purshia'' (bitterbrush or cliff-rose) is a small genus of 5–8 species of flowering plants in the family Rosaceae which are native to western North America. Description ''Purshia'' species form deciduous or evergreen shrubs, typically reach ...
, and
aspen Aspen is a common name for certain tree species; some, but not all, are classified by botanists in the section ''Populus'', of the ''Populus'' genus. Species These species are called aspens: *'' Populus adenopoda'' – Chinese aspen (China ...
. In this forbidding landscape lives a large population of free-range
fauna Fauna is all of the animal life present in a particular region or time. The corresponding term for plants is ''flora'', and for fungi, it is '' funga''. Flora, fauna, funga and other forms of life are collectively referred to as '' biota''. Zoo ...
. Desert fishes,
greater sage-grouse The greater sage-grouse (''Centrocercus urophasianus''), also known as the sagehen, is the largest grouse (a type of bird) in North America. Its range is sagebrush country in the western United States and southern Alberta and Saskatchewan, Canad ...
, migratory birds,
mule deer The mule deer (''Odocoileus hemionus'') is a deer indigenous to western North America; it is named for its ears, which are large like those of the mule. Two subspecies of mule deer are grouped into the black-tailed deer. Unlike the related whit ...
, and the
pygmy rabbit The pygmy rabbit (''Brachylagus idahoensis'') is a rabbit species native to the United States. It is also the only native rabbit species in North America to dig its own burrow. The pygmy rabbit differs significantly from species within either the ...
are all residents, with the
pronghorn The pronghorn (, ) (''Antilocapra americana'') is a species of artiodactyl (even-toed, hoofed) mammal indigenous to interior western and central North America. Though not an antelope, it is known colloquially in North America as the American a ...
– North America's fastest land mammal – being the best known and numbering around 3,500. There are also large herds of
mule deer The mule deer (''Odocoileus hemionus'') is a deer indigenous to western North America; it is named for its ears, which are large like those of the mule. Two subspecies of mule deer are grouped into the black-tailed deer. Unlike the related whit ...
, and a small but self-sustaining population of
bighorn sheep The bighorn sheep (''Ovis canadensis'') is a species of sheep native to North America. It is named for its large horns. A pair of horns might weigh up to ; the sheep typically weigh up to . Recent genetic testing indicates three distinct subspec ...
. The
bighorn The bighorn sheep (''Ovis canadensis'') is a species of sheep native to North America. It is named for its large horns. A pair of horns might weigh up to ; the sheep typically weigh up to . Recent genetic testing indicates three distinct subspec ...
is not strictly native to the Sheldon Refuge, having been extirpated there during the frontier era and re-introduced about 1930. The
pronghorn The pronghorn (, ) (''Antilocapra americana'') is a species of artiodactyl (even-toed, hoofed) mammal indigenous to interior western and central North America. Though not an antelope, it is known colloquially in North America as the American a ...
played a key role in the refuge's history, as approximately 94 percent of the current protected land area was originally set aside as the ''Charles Sheldon Antelope Range'' in 1936. The refuge is the home of the Alvord chub, an
endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
fish species of limited geographic distribution. Formerly the wildlife reserve hosted
mustang The mustang is a free-roaming horse of the Western United States, descended from horses brought to the Americas by the Spanish. Mustangs are often referred to as wild horses, but because they are descended from once-domesticated animals, they ...
, feral horses, but by 2014 these had all been removed (see below).


Minerals

Opal miners have been active in the valley since 1906. The refuge contains the very active and popular Virgin Valley Opal Mining District whose mineral rights were grandfathered-in with the establishment of the sanctuary. Rockhounds search for precious opal,
agate Agate () is a common rock formation, consisting of chalcedony and quartz as its primary components, with a wide variety of colors. Agates are primarily formed within volcanic and metamorphic rocks. The ornamental use of agate was common in Ancie ...
s,
petrified wood Petrified wood, also known as petrified tree (from Ancient Greek meaning 'rock' or 'stone'; literally 'wood turned into stone'), is the name given to a special type of ''fossilized wood'', the fossilized remains of terrestrial vegetation. ''P ...
,
carnelian Carnelian (also spelled cornelian) is a brownish-red mineral commonly used as a semi-precious gemstone. Similar to carnelian is sard, which is generally harder and darker (the difference is not rigidly defined, and the two names are often use ...
,
obsidian Obsidian () is a naturally occurring volcanic glass formed when lava extrusive rock, extruded from a volcano cools rapidly with minimal crystal growth. It is an igneous rock. Obsidian is produced from felsic lava, rich in the lighter elements s ...
,
rhyolite Rhyolite ( ) is the most silica-rich of volcanic rocks. It is generally glassy or fine-grained (aphanitic) in texture, but may be porphyritic, containing larger mineral crystals (phenocrysts) in an otherwise fine-grained groundmass. The mineral ...
,
jasper Jasper, an aggregate of microgranular quartz and/or cryptocrystalline chalcedony and other mineral phases,Kostov, R. I. 2010. Review on the mineralogical systematics of jasper and related rocks. – Archaeometry Workshop, 7, 3, 209-213PDF/ref> ...
, hyalite opal, and
psilomelane Psilomelane is a group name for hard black manganese oxides including hollandite and romanechite. Psilomelane consists of hydrous manganese oxide with variable amounts of barium and potassium. Psilomelane is erroneously, and uncommonly, known as ...
, among other semiprecious
gemstone A gemstone (also called a fine gem, jewel, precious stone, or semiprecious stone) is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments. However, certain rocks (such as lapis lazuli, opal, ...
s. The Virgin Valley Mining District is known for black opals, the
Nevada Nevada ( ; ) is a U.S. state, state in the Western United States, Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. N ...
State Gemstone, still very active with multiple fee-dig mines.


Roads and nearby communities

A point within the refuge is also the farthest place in the contiguous US from a
McDonald's McDonald's Corporation is an American Multinational corporation, multinational fast food chain store, chain, founded in 1940 as a restaurant operated by Richard and Maurice McDonald, in San Bernardino, California, United States. They rechri ...
restaurant, at just 115 miles (185 kilometers).
Nevada State Route 140 State Route 140 (SR 140) is a two-lane state highway in Humboldt County, Nevada. It serves a sparsely populated section of the state, connecting northwestern Nevada to southern Oregon. Most of the highway was originally part of State Route 8A, ...
traverses the refuge from east to west and is the only paved road within the refuge. The nearest community of any size is
Denio, Nevada Denio is a census-designated place (CDP) in Humboldt County, Nevada, along the Oregon state line in the United States. The Denio post office was originally north of the state line in Harney County, Oregon, but the residents moved the building i ...
, 14 miles from the refuge's eastern boundary. The nearest divided highway is in
Winnemucca, Nevada Winnemucca () is the only incorporated city in, and is the county seat of, Humboldt County, Nevada, United States. As of the 2010 census, the city had a total population of 8,431, up 14.0 percent from the 2010 census figure of 7,396. Intersta ...
, approximately 100 miles to the south. County Road 8A connects to
Cedarville, California Cedarville (formerly Surprise Valley and Deep Creek) is a census-designated place located east of Alturas, at an elevation of , in Modoc County, California. Its population is 437 as of the 2020 census, down from 514 at the 2010 census. Geography ...
.


Feral horse controversy

The population of Sheldon horses was the descendants of horses used by the
U.S. Army The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, cl ...
. Harry Wilson was one of the ranchers that sold horses to the U.S. cavalry. When the Wilsons owned the Virgin Valley Ranch, they worked with the Army, which provided thoroughbred stallions that were bred with the Wilsons' standardbreds. Proposals to
cull In biology, culling is the process of segregating organisms from a group according to desired or undesired characteristics. In animal breeding, it is the process of removing or segregating animals from a breeding stock based on a specific tr ...
some of the alleged excess population of the mustang in the Sheldon National Wildlife Refuge were drawing public concern . The official USFWS position, as stated on their refuge's website, was "horses and burros are not native to Sheldon Refuge. They are descended from domestic stock turned loose around the turn of the twentieth century. They are primarily grass eaters, and their grazing can devastate native vegetation and cause severe damage to
riparian A riparian zone or riparian area is the interface between land and a river or stream. Riparian is also the proper nomenclature for one of the terrestrial biomes of the Earth. Plant habitats and communities along the river margins and banks ar ...
habitat." Some private-sector advocates, such as the
Sierra Club The Sierra Club is an environmental organization with chapters in all 50 United States, Washington D.C., and Puerto Rico. The club was founded on May 28, 1892, in San Francisco, California, by Scottish-American preservationist John Muir, who be ...
, agree with the USFWS position. In response, the American Wild Horse Preservation Campaign has accused the USFWS of conducting "helicopter round-ups during
foal A foal is an equine up to one year old; this term is used mainly for horses, but can be used for donkeys. More specific terms are colt for a male foal and filly for a female foal, and are used until the horse is three or four. When the foal i ...
ing season" in the Sheldon Refuge. Due to the negative impact horses and burros have on riparian areas and the resulting strain on native wildlife, Sheldon NWR officials announced a decision to remove all horses from the refuge by 2014 and they all were removed.


References

{{authority control 1931 establishments in Nevada 1931 establishments in Oregon National Wildlife Refuges in Nevada National Wildlife Refuges in Oregon Protected areas established in 1931 Protected areas of the Great Basin Protected areas of Humboldt County, Nevada Protected areas of Lake County, Oregon Protected areas of Washoe County, Nevada