Owens Lake

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Owens Lake
Owens Lake aerial from northeast.jpg
Aerial view of Owens Lake and the Eastern Sierra from the northeast
Relief map of California.png
Red pog.svg
Owens Lake
Location Sierra Nevada
Inyo County, California,
United States
Coordinates 36°26′00″N117°57′03″W / 36.4332°N 117.9509°W / 36.4332; -117.9509 Coordinates: 36°26′00″N117°57′03″W / 36.4332°N 117.9509°W / 36.4332; -117.9509
Type Flat
Primary inflows Owens River
Natural springs and wells
Basin  countriesUnited States
Max. length17.5 mi (28.2 km)
Max. width10 mi (16 km)
Max. depth3 ft (0.91 m)
Surface elevation3,556 ft (1,084 m) [1]
References GNIS feature ID 272820 [1]
Image of the Owens Valley from the International Space Station - oriented top = true west Owens.lake.arp.750pix.jpg
Image of the Owens Valley from the International Space Station – oriented top = true west

Owens Lake is a mostly dry lake in the Owens Valley on the eastern side of the Sierra Nevada in Inyo County, California. It is about 5 miles (8.0 km) south of Lone Pine, California. Unlike most dry lakes in the Basin and Range Province that have been dry for thousands of years, Owens held significant water until 1913, when much of the Owens River was diverted into the Los Angeles Aqueduct, causing Owens Lake to desiccate by 1926. [2] A 2004 court order required the LADWP to reestablish a small flow from the river into the lake. [3] [4] Nevertheless, as of 2013, it is the largest single source of dust pollution in the United States. [5]



Map showing the system of once-interconnected Pleistocene lakes in eastern California (USGS) California Pleistocene Lakes USGS.png
Map showing the system of once-interconnected Pleistocene lakes in eastern California (USGS)

Owens Lake was given its present name by the explorer John C. Frémont, in honor of one of his guides, Richard Owens. [6] Owens himself never set foot in the valley. The lake's original name, given by the Nüümü (Owens Valley Paiute), is Patsiata. [7]

Before the diversion of the Owens River, Owens Lake was up to 12 miles (19 km) long and 8 miles (13 km) wide, covering an area of up to 108 square miles (280 km2). In the last few hundred years the lake had an average depth of 23 to 50 feet (7.0 to 15.2 m), and sometimes overflowed to the south, after which the water would flow into the Mojave Desert. [2] In 1905, the lake's water was thought to be "excessively saline." [8] It is thought that in the late Pleistocene about 11–12,000 years ago Owens Lake was even larger, covering nearly 200 square miles (520 km2) and reaching a depth of 200 feet (61 m). The increased inflow from the Owens River, from melting glaciers of the post-Ice Age Sierra Nevada, caused Owens Lake to overflow south through Rose Valley into another now-dry lakebed China Lake, in the Indian Wells Valley near Ridgecrest, California. [9] On November 5, 1913, William Mulholland finished the Los Angeles aqueduct. Water was piped and canaled from Owens River to the Van Norman Reservoir. Fights would breakout between the farmers of Owens valley and The City of Los Angeles; the farmers would blow up the aqueduct project, go to the spill ways and divert the water back into Owens lake.

Starting in 1913, the river and streams that fed Owens Lake were diverted by Los Angeles Department of Water and Power (LADWP) into the Los Angeles Aqueduct, and the lake level started to drop quickly. [10] As the lake dried, soda processing at nearby Keeler, California, switched from relatively cheap chemical methods to more expensive physical ones. The Natural Soda Products Company sued the city of Los Angeles and built a new plant with a $15,000 settlement. A fire destroyed this plant shortly after it was built, but the company rebuilt it on the dry lakebed in the 1920s.

During the unusually wet winter of 1937, LADWP diverted water from the aqueduct into the lakebed, flooding the soda plant. Because of this, the courts ordered the city to pay $154,000. After an unsuccessful appeal to the state supreme court in 1941, LADWP built the Long Valley Dam, which impounded Lake Crowley for flood control. [10] The lake was the epicenter of a magnitude 5.8 earthquake that occurred on June 24, 2020. [11]

In 2022, Great Basin Unified Air Pollution Control District successfully sued LADWP for failure to control pollution at Owens lake on sensitive Native American cultural resources land [12] [13]


Owens Lake from the Horseshoe Meadows Road Owens-Lake-from-Horseshoe-Meadows-Road.jpg
Owens Lake from the Horseshoe Meadows Road

The lake is currently a large salt flat whose surface is made of a mixture of clay, sand, and a variety of minerals including halite, burkeite, mirabilite, thenardite, and trona. In wet years, these minerals form a chemical soup in the form of a small brine pond within the dry lake. When conditions are right, bright pink halophilic (salt-loving) archaea spread across the salty lakebed. Also, on especially hot summer days when ground temperatures exceed 150° F (66 °C), water is driven out of the hydrates on the lakebed creating a muddy brine. More commonly, periodic winds stir up noxious alkali dust storms that carry away as much as four million tons (3.6 million metric tons) of dust from the lakebed each year, causing respiratory problems in nearby residents. [10] [14] The dust includes carcinogens, such as cadmium, nickel and arsenic. [15]


Alkali dust storm at Owens Lake Blowing-alkali-dust-Owens-Lake.jpg
Alkali dust storm at Owens Lake

The LADWP and the California State Lands Commission own most of the Owens Lake bed, though a few small parcels along the historic western shoreline are privately owned. [16] In 2004, the California Department of Fish and Wildlife (CDFW) acquired a 218-acre (88 ha) parcel at the foot of Owens Lake. Designated the Cartago Wildlife Area in 2007, it is one of the few remaining spring and wetland areas on the shore of Owens Lake. [17] CDFW is using mitigation funds from CalTrans to enhance habitat.[ citation needed ]

As part of an air quality mitigation settlement, LADWP is currently shallow flooding 27 square miles (69.9 km2) of the salt pan to try to help minimize alkali dust storms and further adverse health effects. There is also about 3.5 square miles (9.1 km2) of managed vegetation being used as a dust control measure. The vegetation consists of saltgrass, which is a native perennial grass highly tolerant of the salt and boron levels in the lake sediments. [18] Gravel covers are also used. [19]


This astronaut photograph highlights the mostly dry bed of Owens Lake. Owens Lake, California.JPG
This astronaut photograph highlights the mostly dry bed of Owens Lake.

This once-blue saline lake was an important feeding and resting stop for millions of waterfowl each year. During a visit to Owens Lake in 1917 Joseph Grinnell from the Museum of Vertebrate Zoology in Berkeley reported "Great numbers of water birds are in sight along the lake shore--avocets, phalaropes, ducks. Large flocks of shorebirds in flight over the water in the distance, wheeling about show in mass, now silvery now dark, against the gray-blue of the water. There must be literally thousands of birds within sight of this one spot." [20]

Owens Lake is still recognized as an Important Bird Area in California by the National Audubon Society. [16] At the shore, a chain of wetlands, fed by springs and artesian wells, keep part of the former Owens Lake ecosystem alive. Snowy plovers nest at Owens along with several thousand snow geese and ducks. As a result of current dust mitigation efforts, shallow flooding of the lakebed has created both shallow and deeper (about 3 feet (0.9 m) deep) habitats on the lakebed. [21] This water, although seasonally applied, is helping to buoy the lake's ecosystem causing hope in conservationists that an expanded shallow flooding program could do even more. There are no serious plans, however, to restore Owens to anything resembling a conventional lake. [10]

On April 19, 2008, the Eastern Sierra Audubon Society, Audubon California, and the Owens Valley Committee held the first lake-wide survey of the bird populations of Owens Lake. Volunteers recorded a total of 112 avian species and 45,650 individual birds — the highest total number of birds ever officially recorded at Owens Lake. Volunteers identified 15 species of waterfowl (ducks and geese) and 22 species of shorebirds. The highest totals for individuals of a species included 13,873 California gulls (an inland nester at Mono Lake and elsewhere); 9,218 American avocets; 1,767 eared grebes; 13,826 peeps or small sandpipers such as dunlin, western and least sandpipers; and 2,882 individual ducks. [18]

Local industry

Cerro Gordo Mines

The remains of the Cottonwood Charcoal Kilns. Cottonwood Charcoal Kilns.jpg
The remains of the Cottonwood Charcoal Kilns.

The town of Cartago, below the Sierra Nevada near present-day Olancha, California, was the western shipping port for the Cerro Gordo Mines production and transported goods across Owens Lake with the northern ports of Swansea and Keeler directly below the mines. From Cartago a barge-like vessel, the Bessie Brady, was launched in 1872, which cut the three-day freight journey around the lake down to three hours. [22]

Much of the freight it carried was silver and lead bullion from the Cerro Gordo mines, which at their height were so productive that the bars of the refined metals waited in large stacks before twenty-mule team teamsters could haul it to Los Angeles. The trying three-week (one way) journey improved after the formation of the Cerro Gordo Freighting Company, run by ancestors of regional historian Remi Nadeau who has written of this period.

The town of Keeler, below the Inyo Mountains on the former north shore, replaced Swansea as the shipping port for the mines after the 1872 Lone Pine earthquake. In the 1870s it had a population of 5,000 people as the center of trade for the Cerro Gordo mines.

The Cottonwood Charcoal Kilns, traditional stone masonry 'beehive' charcoal kilns, were built to transform wood from trees in Cottonwood Canyon above the lake into charcoal, to feed the Cerro Gordo mines' silver and lead smelters across the lake at Swansea. The ruins are located on the southern side of the lakebed near Cartago. They were similar to the nearby Panamint Charcoal Kilns near Death Valley. The kilns are identified as California Historical Landmark #537. [23]

Other enterprises

In 1879 silver mining ended, but Keeler was saved when the Carson and Colorado Railroad built narrow-gauge rail tracks to the town. It then became a soda, salt, and marble shipping center until 1960. The rail line had been sold to Southern Pacific Railroad in 1900. Keeler's current population is around 50 people and continues in decline.

In the 20th century the Clark Chemical Company operated on the northwestern shore at Bartlett, with evaporation ponds for lake brine and a plant to extract its chemicals.

Mineral extraction plants around the lake: [24]

  • Inyo Development Company, 1887–1920
  • Natural Soda Products Company/Michigan Alkali Company/Wyandotte Chemical Corporation, 1912–1953
  • California Alkali Company/Inyo Chemical Company, 1917–1932
  • Pacific Alkali/Columbia-Southern Chemical Corp./Pittsburgh Plate Glass, 1928–1968
  • Permanente Metals Corporation, 1947–1950
  • Morrison and Weatherly Chemical Corporation (M&W)/Lake Minerals Corporation (LMC)/Cominco American Inc./Owens Lake Soda Ash Company (OLSAC)/U.S. Borax/Rio Tinto Minerals, 1962–present. Rio Tinto Minerals has mineral lease renewals through 2048. [25]


Numerous Western films have been shot by Owens Lake, including Westward Ho (1935), Maverick (1994), Riders of the Dawn (1937), Across the Plains (1939), Stage to Tucson (1951), From Hell to Texas (1958) and Nevada Smith (1966). [26]

Other films that had scenes shot at Owens Lake or the nearby Alabama Hills where Owens Lake is visible includes Top Gun (1986), and Tremors (1990). [27]

Public access

The Cartago Wildlife Area continues to develop as a wildlife-viewing area for the public. The site is open year-round for viewing numerous bird species attracted to the ponds and wetlands as well as the ruins of a historic soda ash plant from the World War I era and the 1920s. [18]

See also

Related Research Articles

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Mono Lake is a saline soda lake in Mono County, California, formed at least 760,000 years ago as a terminal lake in an endorheic basin. The lack of an outlet causes high levels of salts to accumulate in the lake which make its water alkaline.

<span class="mw-page-title-main">Inyo County, California</span> County in California, United States

Inyo County is a county in the eastern central part of the U.S. state of California, located between the Sierra Nevada and the state of Nevada. In the 2020 census, the population was 19,016. The county seat is Independence. Inyo County is on the east side of the Sierra Nevada and southeast of Yosemite National Park in Central California. It contains the Owens River Valley; it is flanked to the west by the Sierra Nevada and to the east by the White Mountains and the Inyo Mountains. With an area of 10,192 square miles (26,397 km2), Inyo County is the second-largest county by area in California, after San Bernardino County. Almost one-half of that area is within Death Valley National Park. However, with a population density of 1.8 people per square mile, it also has the second-lowest population density in California, after Alpine County.

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Keeler, formerly known as Hawley, is a census-designated place (CDP) in Inyo County, California, United States. Keeler is located on the east shore of Owens Lake 11.5 miles (19 km) south-southeast of New York Butte. The population was 71 people at the 2020 census, up from 66 at the 2010 census.

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