Lake Billy Chinook is a reservoir in Jefferson County in the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sover ...

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 ...

. Created by the

Round Butte Dam Round Butte Dam is a rockfill-type hydroelectric dam on the Deschutes River, in the U.S. state of Oregon. Located in Jefferson County and owned by the power company Portland General Electric, its reservoir is called Lake Billy Chinook. The dam ...

in 1964, Lake Billy Chinook lies in a canyon at the confluence of the Crooked, Deschutes, and Metolius rivers near

Culver Culver may refer to: Places United Kingdom *Culver Down, Isle of Wight United States *Culver, Indiana, a town in northern Indiana * Culver, Kansas, a city in north-central Kansas * Culver, Kentucky, an unincorporated community * Culver, Misso ...

and

Madras Chennai (, ), formerly known as Madras ( the official name until 1996), is the capital city of Tamil Nadu, the southernmost Indian state. The largest city of the state in area and population, Chennai is located on the Coromandel Coast of th ...

. It was named for

Billy Chinook Billy Chinook was a chief and member of the Wasco-Wishram, Wasco tribe. Chinook was a guide for John C. Frémont and Kit Carson, who explored Central Oregon from 1843 to 1844 and from 1845 to 1847. Chinook also served as First sergeant, First Ser ...

, a Native American of the

Wasco Wasco is the name of four places in the United States: Places United States * Wasco, California, a city in California ** Wasco State Prison, located in Wasco, California * Wasco, Illinois, a former hamlet (unincorporated town) in Illinois, now pa ...

tribe who traveled alongside American explorers

John C. Frémont John Charles Frémont or Fremont (January 21, 1813July 13, 1890) was an American explorer, military officer, and politician. He was a U.S. Senator from California and was the first Republican nominee for president of the United States in 1856 ...

and

Kit Carson Christopher Houston Carson (December 24, 1809 – May 23, 1868) was an American frontiersman. He was a fur trapper, wilderness guide, Indian agent, and U.S. Army officer. He became a frontier legend in his own lifetime by biographies and n ...

in their expeditions of 1843 and 1844."History of Lake Billy Chinook"
Cove Palisades Resort and Marina. Retrieved January 11, 2014.

Geology

The canyon in which Lake Billy Chinook lies was carved by the three rivers that flow into the lake. The Deschutes Formation into which it is carved began forming about 11 million years ago, as alternating layers of

basaltic lava A mafic mineral or rock is a silicate mineral or igneous rock rich in magnesium and iron. Most mafic minerals are dark in color, and common rock-forming mafic minerals include olivine, pyroxene, amphibole, and biotite. Common mafic rocks include ...

, stream sediment, and volcanic debris flowed into the area from the

Cascade Range The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as the North Cascades, ...

. One to three million years ago, lava flows from the Cascades and

Newberry Volcano Newberry Volcano is a large active shield-shaped stratovolcano located about south of Bend, Oregon, United States, east of the major crest of the Cascade Range, within the Newberry National Volcanic Monument. Its highest point is Paulina Peak ...

capped the exposed material, forming the "rimrock basalt" which is visible atop the canyon. Further erosion by the three rivers, volcanic activity, and wind have continued to form and erode the canyon."Lake Billy Chinook"
(PDF). Oregon Parks and Recreation Department. Retrieved February 2, 2014.

Description

The Deschutes and Crooked River branches of the lake are within the boundaries of

The Cove Palisades State Park The Cove Palisades State Park is a state park in eastern Jefferson County, Oregon, near Culver and Madras in the central part of the state, and is administered by the Oregon Parks and Recreation Department. It is located on the waters and ...

. The south shores of the

Metolius River The Metolius River (pronounced ''muh TOLL ee us'') is a tributary of the Deschutes River (through Lake Billy Chinook) in Central Oregon, United States, near the city of Sisters. The river flows north from springs near Black Butte, then turns sha ...

are public lands administered by the

Bureau of Land Management The Bureau of Land Management (BLM) is an agency within the United States Department of the Interior responsible for administering federal lands. Headquartered in Washington DC, and with oversight over , it governs one eighth of the country's la ...

and the

United States Forest Service The United States Forest Service (USFS) is an agency of the U.S. Department of Agriculture that administers the nation's 154 national forests and 20 national grasslands. The Forest Service manages of land. Major divisions of the agency inc ...

, while the north shores are part of the

Warm Springs Indian Reservation The Warm Springs Indian Reservation consists of in north-central Oregon, in the United States, and is governed by the Confederated Tribes of Warm Springs. Tribes Three tribes form the confederation: the Wasco, Tenino (Warm Springs) and P ...

. Along with the Island peninsula, there is one island in the lake named Chinook Island. Lake Billy Chinook is a very popular recreational lake in

Central Oregon Central Oregon is a geographic region in the U.S. state of Oregon and is traditionally considered to be made up of Deschutes, Jefferson, and Crook counties. Other definitions include larger areas, often encompassing areas to the north towards the ...

for water skiing, sailing, jet skiing and boating. There are four boat launches around the lake, as well a marina and café on the east shore named the Cove Palisades Resort, which also offers rentals of

houseboat A houseboat is a boat that has been designed or modified to be used primarily as a home. Most houseboats are not motorized as they are usually moored or kept stationary at a fixed point, and often tethered to land to provide utilities. How ...

s and various other watercraft. Southwest of the lake is

Lake Billy Chinook Airport Lake Billy Chinook Airport, also known as Lake Billy Chinook State Airport, is a public use airport located six nautical miles (7 mi, 11 km) west of the central business district of Culver, a city in Jefferson County, Oregon, U ...

, a small, privately owned, public use airport.

Fishing

Lake Billy Chinook offers fishing for

brown trout The brown trout (''Salmo trutta'') is a European species of salmonid fish that has been widely introduced into suitable environments globally. It includes purely freshwater populations, referred to as the riverine ecotype, ''Salmo trutta'' morph ...

, smallmouth bass,

rainbow trout The rainbow trout (''Oncorhynchus mykiss'') is a species of trout native to cold-water tributaries of the Pacific Ocean in Asia and North America. The steelhead (sometimes called "steelhead trout") is an anadromous (sea-run) form of the coasta ...

, and Kokanee, a land-locked salmon. The lake is also one of the few bodies of water in the United States where

bull trout The bull trout (''Salvelinus confluentus'') is a char of the family Salmonidae native to northwestern North America. Historically, ''S. confluentus'' has been known as the " Dolly Varden" (''S. malma''), but was reclassified as a separate specie ...

, a threatened species that thrives in Lake Billy Chinook, can be legally fished. As of 2014, the Metolius arm of the lake is closed to fishing, without a tribal permit.

Cove Palisades State Park

The majority of Lake Billy Chinook is surrounded by

. The state park offers both camping and lodging and is open all year for day use. The Cove Palisades consists of two campgrounds: Crooked River Campground (open all year) and the Deschutes Campground which is open from mid-May to mid-September. The Crooked River Campground is located higher up in the canyon where as the Deschutes Campground is walking distance from the water.

The Island

Between the Deschutes and Crooked River branches of the lake, there is a large and isolated ,

peninsula A peninsula (; ) is a landform that extends from a mainland and is surrounded by water on most, but not all of its borders. A peninsula is also sometimes defined as a piece of land bordered by water on three of its sides. Peninsulas exist on all ...

plateau In geology and physical geography, a plateau (; ; ), also called a high plain or a tableland, is an area of a highland consisting of flat terrain that is raised sharply above the surrounding area on at least one side. Often one or more sides ha ...

named the Island. The Island is surrounded on three sides by vertical cliffs at heights of to above the water. The Island was designated a

Research Natural Area Research Natural Area is a designation for certain protected areas in the United States. Research Natural Areas (RNAs) are part of a nationwide network of ecological areas set aside for both research and education. The network includes areas ma ...

by the Bureau of Land Management (BLM) in 1986. In 1997, the BLM closed the Island to the public, although educational institutions and conservation groups are permitted to visit between May and mid-February. Owing to the steep cliffs that surround it, the Island has never been grazed by

livestock Livestock are the domesticated animals raised in an agricultural setting to provide labor and produce diversified products for consumption such as meat, eggs, milk, fur, leather, and wool. The term is sometimes used to refer solely to animals ...

, except for one season of

grazing In agriculture, grazing is a method of animal husbandry whereby domestic livestock are allowed outdoors to roam around and consume wild vegetations in order to convert the otherwise indigestible (by human gut) cellulose within grass and other ...

by sheep in 1921. As a result, it contains one of the United States' last remaining undisturbed communities of two native vegetation types:

western juniper ''Juniperus occidentalis'', known as the western juniper, is a shrub or tree native to the Western United States, growing in mountains at altitudes of and rarely down to . It is listed as Least Concern on the IUCN Red List because it is a wides ...

- big sagebrush-

bluebunch wheatgrass ''Pseudoroegneria spicata'' is a species of grass known by the common name bluebunch wheatgrass. This native western North American perennial bunchgrass is also known by the scientific synonyms ''Elymus spicatus'' and ''Agropyron spicatum''. The g ...

and western juniper-big sagebrush-

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 ...

. It also is an unusual home to the striped whiptail lizard, a species of southwestern U.S.

desert A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to denudation. About on ...

s that settled the Island by escaping from a

recreational vehicle A recreational vehicle, often abbreviated as RV, is a motor vehicle or trailer that includes living quarters designed for accommodation. Types of RVs include motorhomes, campervans, coaches, caravans (also known as travel trailers and camper ...

. The Island has not faced a sizable fire in the last century. The lack of a major fire has supported the strong presence of woody vegetation on the Island. The BLM plans to let any fire naturally burn as part of their research, contingent on weather conditions and personnel that can prevent it from affecting the Cove Palisades State Park facilities below the Island. In 2011,

U.S. Secretary of the Interior The United States secretary of the interior is the head of the United States Department of the Interior. The secretary and the Department of the Interior are responsible for the management and conservation of most federal land along with natural ...

Ken Salazar designated the Island a

National Natural Landmark The National Natural Landmarks (NNL) Program recognizes and encourages the conservation of outstanding examples of the natural history of the United States. It is the only national natural areas program that identifies and recognizes the best ...

. It is one of eleven

National Natural Landmarks in Oregon National may refer to: Common uses * Nation or country ** Nationality – a ''national'' is a person who is subject to a nation, regardless of whether the person has full rights as a citizen Places in the United States * National, Maryland, c ...

References

{{authority control Jefferson County, Oregon