Silver Creek (Harney County, Oregon)
   HOME

TheInfoList



OR:

Silver Creek is an stream of Oregon which drains a portion of the
endorheic An endorheic basin ( ; also endoreic basin and endorreic basin) is a drainage basin that normally retains water and allows no outflow to other external bodies of water (e.g. rivers and oceans); instead, the water drainage flows into permanent ...
Harney Basin to
Harney Lake Harney Lake is a shallow alkali lake basin located in southeast Oregon, United States, approximately south of the city of Burns, Oregon, Burns. The lake lies within the boundary of the Malheur National Wildlife Refuge and is the lowest point i ...
. Arising in the Blue Mountains, it flows generally southeast, although much of the stream is intermittent. The Silver Creek Volcanic Field is associated with the creek's watershed.


Course

From its
headwaters The headwater of a river or stream is the geographical point of its beginning, specifically where surface runoff water begins to accumulate into a flowing channel of water. A river or stream into which one or many tributary rivers or streams flo ...
in the southern Blue Mountains, Silver Creek flows south through the Ochoco National Forest and is fed by tributaries and, at the base of the mountains, large springs feed the creek. The creek
meander A meander is one of a series of regular sinuous curves in the Channel (geography), channel of a river or other watercourse. It is produced as a watercourse erosion, erodes the sediments of an outer, concave bank (cut bank, cut bank or river cl ...
s through a broad
alluvial plain An alluvial plain is a plain (an essentially flat landform) created by the deposition of sediment over a long period by one or more rivers coming from highland regions, from which alluvial soil forms. A ''floodplain'' is part of the process, bei ...
and turns southeast near Chickahominy Reservoir, traveling through the
unincorporated community An unincorporated area is a parcel of land that is not governed by a local general-purpose municipal corporation. (At p. 178.) They may be governed or serviced by an encompassing unit (such as a county) or another branch of the state (such as th ...
of
Riley Riley may refer to: Businesses * Riley (brand), British sporting goods brand founded in 1878 * Riley Motor, British motorcar and bicycle manufacturera 1890–1969 * Riley Technologies, American auto racing constructor and team, founded by Bob ...
, where it is crossed by Highway 20 and Highway 395, respectively. Past Riley Silver Creek flows through a canyon with tall walls made of volcanic
basalt Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial ...
. The creek is impounded several miles downstream, forming Moon Reservoir. It then splits into two streams; one portion heads southwest into the usually dry Silver Lake, while the other portion flows southeast through Warm Springs Valley into the Malheur National Wildlife Refuge, and finally Harney Lake.


Flora and fauna

The upper regions of the Silver Creek watershed are forested; the most common plant species are
coniferous Conifers () are a group of conifer cone, cone-bearing Spermatophyte, seed plants, a subset of gymnosperms. Scientifically, they make up the phylum, division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a sin ...
, including
Ponderosa Pine ''Pinus ponderosa'', commonly known as the ponderosa pine, bull pine, blackjack pine, western yellow-pine, or filipinus pine, is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is t ...
,
White Fir ''Abies concolor'', the white fir, concolor fir, or Colorado fir, is a coniferous tree in the pine family Pinaceae. This tree is native to the mountains of western North America, including the Sierra Nevada and southern Rocky Mountains, and int ...
,
Douglas-fir The Douglas fir (''Pseudotsuga menziesii'') is an evergreen conifer species in the pine family, Pinaceae. It is the tallest tree in the Pinaceae family. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Or ...
, and Western Juniper. The lower regions are primarily desert
rangeland Rangelands are grasslands, shrublands, woodlands, wetlands, and deserts that are grazed by domestic livestock or wild animals. Types of rangelands include tallgrass and shortgrass prairies, desert grasslands and shrublands, woodlands, savanna ...
s. Fish such as
Tui Chub The Tui chub (''Siphateles bicolor'') is a species of freshwater Actinopterygii, ray-finned fish belonging to the Family (biology), family Leuciscidae, which includes the daces, chubs, Phoxinus, Eurasian minnows and related fishes. This fish is ...
, Speckled Dace, Redside Shiner, Mottled Sculpin, and Great Basin redband trout are native to Silver Creek and its tributaries. Others, including
rainbow Trout The rainbow trout (''Oncorhynchus mykiss'') is a species of trout native to cold-water tributary, tributaries of the Pacific Ocean in North America and Asia. The steelhead (sometimes called steelhead trout) is an Fish migration#Classification, ...
,
Largemouth Bass The largemouth bass (''Micropterus nigricans'') is a carnivorous, freshwater fish, freshwater, ray-finned fish in the Centrarchidae (sunfish) family, native to the eastern United States, eastern and central United States, southeastern Canada an ...
,
Bluegill The bluegill (''Lepomis macrochirus''), sometimes referred to as "bream", "brim", "sunny", or, in Texas, "copper nose", is a species of North American freshwater fish, native to and commonly found in streams, rivers, lakes, ponds and wetlands ea ...
, and
Yellow Perch The yellow perch (''Perca flavescens''), commonly referred to as perch, striped perch, American perch or preacher is a freshwater perciform fish native to much of North America. The yellow perch was described in 1814 by Samuel Latham Mitchill fr ...
were introduced to the watershed by humans. Large
mammal A mammal () is a vertebrate animal of the Class (biology), class Mammalia (). Mammals are characterised by the presence of milk-producing mammary glands for feeding their young, a broad neocortex region of the brain, fur or hair, and three ...
s such as
Deer A deer (: deer) or true deer is a hoofed ruminant ungulate of the family Cervidae (informally the deer family). Cervidae is divided into subfamilies Cervinae (which includes, among others, muntjac, elk (wapiti), red deer, and fallow deer) ...
, Elk, and
Antelope The term antelope refers to numerous extant or recently extinct species of the ruminant artiodactyl family Bovidae that are indigenous to most of Africa, India, the Middle East, Central Asia, and a small area of Eastern Europe. Antelopes do ...
have been spotted in the lower regions during winter.


See also

* List of longest streams in Oregon


References

{{authority control Rivers of Oregon Rivers of Harney County, Oregon