Hot Creek, starting as Mammoth Creek, is a

stream A stream is a continuous body of water, body of surface water Current (stream), flowing within the stream bed, bed and bank (geography), banks of a channel (geography), channel. Depending on its location or certain characteristics, a strea ...

Mono County Mono County ( ) is a county located in the east central portion of the U.S. state of California. As of the 2020 United States census, the population was 13,195, making it the fourth-least populous county in California. The county seat is Bridg ...

of eastern

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

, in the

Western United States The Western United States (also called the American West, the Western States, the Far West, the Western territories, and the West) is List of regions of the United States, census regions United States Census Bureau. As American settlement i ...

. It is within the

Inyo National Forest Inyo National Forest is a United States National Forest covering parts of the eastern Sierra Nevada of California and the White Mountains of California and Nevada. The forest hosts several superlatives, including Mount Whitney, the highest p ...

Course

Mammoth Creek

The creek begins its course in the eastern

Sierra Nevada The Sierra Nevada ( ) is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primari ...

named as Mammoth Creek. It originates as an outflow of Twin Lakes, just south of

Mammoth Mountain Mammoth Mountain is a lava dome complex partially located in the town of Mammoth Lakes, California, in the Inyo National Forest of Madera County, California, Madera and Mono County, California, Mono counties. It is home to a large Mammoth Mounta ...

and above the town of

Mammoth Lakes Mammoth Lakes is the only incorporated town in Mono County, California, United States. It is located immediately to the east of Mammoth Mountain, at an elevation of . As of the 2020 United States census, the population was 7,191, reflecting a ...

. The stream is primarily sourced from melted snow water at above sea level. It is quite cold, rarely being above .

Hot Creek

As Mammoth Creek leaves the Sierra and flows east into the

Long Valley Caldera Long Valley Caldera is a Depression (geology), depression in eastern California that is adjacent to Mammoth Mountain. The valley is one of the Earth's largest calderas, measuring about long (east-west), wide (north-south), and up to deep. Lo ...

it is joined by warmer water from

geothermal 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 at the Hot Creek State Fish Hatchery. From this confluence the stream is named Hot Creek, though its water temperature seldom exceeds until it reaches Hot Creek Gorge, east of Mammoth Lakes. In the Hot Creek Gorge, numerous

hot spring A hot spring, hydrothermal spring, or geothermal spring is a Spring (hydrology), spring produced by the emergence of Geothermal activity, geothermally heated groundwater onto the surface of the Earth. The groundwater is heated either by shallow ...

s near and in the

stream bed A streambed or stream bed is the bottom of a stream or river and is confined within a Stream channel, channel or the Bank (geography), banks of the waterway. Usually, the bed does not contain terrestrial (land) vegetation and instead supports d ...

add hot water into the stream. Its mouth is at the

confluence In geography, a confluence (also ''conflux'') occurs where two or more watercourses join to form a single channel (geography), channel. A confluence can occur in several configurations: at the point where a tributary joins a larger river (main ...

with the

Owens River The Owens River is a river in eastern California in the United States, approximately long.U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed March 17, 2011, It drains into and through the ...

upstream from

Crowley Lake Crowley Lake is a reservoir on the upper Owens River in southern Mono County, California, in the United States. Crowley Lake is south of Mammoth Lakes. The lake was created in 1941 by the building of the Long Valley Dam by the Los Angeles Depa ...

Ecology

The springs near Hot Creek host one of the two known

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 ...

populations of the

endangered An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, inv ...

Owens tui chub The Owens tui chub (''Siphateles bicolor snyderi'') was described in 1973 as a subspecies of tui chub endemic to the Owens River Basin in Eastern California, United States. The Owens tui chub is distinguished from its closest relative, the Lahon ...

species. The Long Valley Observatory of the United States Geological Survey (USGS), a volcano observatory, monitors spring activity, water temperatures and chemistry, and stream flow, as well as the

caldera A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcanic eruption. An eruption that ejects large volumes of magma over a short period of time can cause significant detriment to the str ...

volcanic activity.

Hot Creek hydrothermal system

hydrothermal Hydrothermal circulation in its most general sense is the circulation of hot water (Ancient Greek ὕδωρ, ''water'',Liddell, H.G. & Scott, R. (1940). ''A Greek-English Lexicon. revised and augmented throughout by Sir Henry Stuart Jones. with th ...

systems, the circulation of

ground water Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations. About 30 percent of all readily available fresh water in the world is groundwater. A unit of rock or an unconsolidat ...

is driven by a combination of topography and

geothermal Geothermal is related to energy and may refer to: * Geothermal energy, useful energy generated and stored in the Earth * Geothermal activity, the range of natural phenomena at or near the surface, associated with release of the Earth's internal he ...

heat sources. The system in the Long Valley Caldera is recharged primarily from snowmelt in the highlands around the western and southern rims of the caldera. The meltwater infiltrates to depths of a few kilometers (or miles), where some is heated to at least by hot rock near the

Inyo craters Inyo may refer to: Places California * Inyo County, California * Inyo National Forest, USA * The Inyo Mountains * The Mono–Inyo Craters Other uses * Japanese for yin and yang Originating in Chinese philosophy, yin and yang (, ), al ...

. The heated water, kept from boiling by high pressure, still has lower density than cold water, and it rises along steeply inclined fractures to depths of . It then flows eastward through rock layers to

hydrothermal vent Hydrothermal vents are fissures on the seabed from which geothermally heated water discharges. They are commonly found near volcanically active places, areas where tectonic plates are moving apart at mid-ocean ridges, ocean basins, and hot ...

discharge points at the surface along Hot Creek and around

. The water temperature declines eastward because of heat loss and mixing with cold water, and in the springs near Crowley Lake temperatures are at only about . The

spring Spring(s) may refer to: Common uses * Spring (season), a season of the year * Spring (device), a mechanical device that stores energy * Spring (hydrology), a natural source of water * Spring (mathematics), a geometric surface in the shape of a he ...

s in Hot Creek all emerge along a stream section between two faults and discharge a total of about of hot water. This water flow represents nearly 70 percent of the total heat discharged by all thermal springs in Long Valley Caldera. The thermal springs farther east all discharge less water and at lower temperatures. The larger and more vigorous springs discharge from fractures in the volcanic rock in the gorge. Rock fracturing happens because the thermal area lies within a region of frequent

earthquake An earthquakealso called a quake, tremor, or tembloris the shaking of the Earth's surface resulting from a sudden release of energy in the lithosphere that creates seismic waves. Earthquakes can range in intensity, from those so weak they ...

s and active uplift of the ground. When fractures become sealed by mineral deposition, spring discharge and temperature decline. When new fractures develop or sealed fractures reopen, spring discharge and temperatures can increase suddenly.

Access

The Hot Creek Gorge area of Hot Creek is managed by the U.S.

as a geologic interpretive site and recreation area. It is popular for

fishing Fishing is the activity of trying to catch fish. Fish are often caught as wildlife from the natural environment (Freshwater ecosystem, freshwater or Marine ecosystem, marine), but may also be caught from Fish stocking, stocked Body of water, ...

swimming Swimming is the self-propulsion of a person through water, such as saltwater or freshwater environments, usually for recreation, sport, exercise, or survival. Swimmers achieve locomotion by coordinating limb and body movements to achieve hydrody ...

hiking A hike is a long, vigorous walk, usually on trails or footpaths in the countryside. Walking for pleasure developed in Europe during the eighteenth century. Long hikes as part of a religious pilgrimage have existed for a much longer time. "Hi ...

bird watching Birdwatching, or birding, is the observing of birds, either as a recreational activity or as a form of citizen science. A birdwatcher may observe by using their naked eye, by using a visual enhancement device such as binoculars or a telescop ...

, and

photography Photography is the visual arts, art, application, and practice of creating images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. It is empl ...

activities.

Dangers and recent activity

Hot Creek in the Hot Creek Gorge section can harbor dangers as the locations, discharge rates, and temperatures of springs often change. The changes can be sudden and dangerous to unprepared visitors (especially if entering beyond walkways and fences). Since May 2006, springs in and near the most popular swimming areas have been

geyser A geyser (, ) is a spring with an intermittent water discharge ejected turbulently and accompanied by steam. The formation of geysers is fairly rare and is caused by particular hydrogeological conditions that exist only in a few places on Ea ...

ing or intermittently spurting very hot, sediment-laden water as high as above the stream surface. At times this geysering activity is vigorous enough to produce "popping" sounds audible from hundreds of feet away. The geysering usually lasts a few seconds and occurs at irregular intervals, with several minutes between eruptions.

Fumaroles A fumarole (or fumerole) is a vent in the surface of the Earth or another rocky planet from which hot volcanic gases and vapors are emitted, without any accompanying liquids or solids. Fumaroles are characteristic of the late stages of volcani ...

, or steam vents, are also located in the gorge. They can occur in the ground beyond the creek bed. The unpredictability of this hazardous spring activity led the U.S. Forest Service to close parts of the Hot Creek Gorge in June 2006, and the closure has remained in effect as of February 2016. Hot Creek Gorge was a

filming location A filming location is a place where some or all of a film or television series is produced, instead of or in addition to using sets constructed on a movie studio backlot or soundstage. In filmmaking, a location is any place where a film crew wi ...

in the 1969 film True Grit, as well as the 1960 film

North to Alaska ''North to Alaska'' is a 1960 American comedy Western/ Northern film directed by Henry Hathaway and John Wayne (uncredited). The picture stars Wayne along with Stewart Granger, Ernie Kovacs, Fabian, and Capucine. The script is based on th ...

also starring

John Wayne Marion Robert Morrison (May 26, 1907 – June 11, 1979), known professionally as John Wayne, was an American actor. Nicknamed "Duke", he became a Pop icon, popular icon through his starring roles in films which were produced during Hollywood' ...

, the 1966

Steve McQueen Terrence Stephen McQueen (March 24, 1930November 7, 1980) was an American actor. His antihero persona, emphasized during the height of counterculture of the 1960s, 1960s counterculture, made him a top box office draw for his films of the late ...

film

Nevada Smith ''Nevada Smith'' is a 1966 American Western film directed by Henry Hathaway and starring Steve McQueen, Karl Malden, Brian Keith, Arthur Kennedy and Suzanne Pleshette. The film was made by Solar Productions in association with and released by ...

, and the 1971 film

Shoot Out ''Shoot Out'' is a 1971 American Western film directed by Henry Hathaway and starring Gregory Peck. The film is adapted from Will James's 1930 novel, ''The Lone Cowboy''. The film was produced, directed, and written by the team that delivered ...

with

Gregory Peck Eldred Gregory Peck (April 5, 1916 – June 12, 2003) was an American actor and one of the most popular film stars from the 1940s to the 1970s. In 1999, the American Film Institute named Peck the AFI's 100 Years...100 Stars, 12th-greatest male ...

, which also starred True Grit's

Jeff Corey Jeff Corey (born Arthur Zwerling; August 10, 1914 – August 16, 2002) was an American stage and screen actor. He was blacklisted in the 1950s and became an acting coach for a period, before returning to film and television work in the 1960s. ...

References

{{reflist

External links

USGS: Geology of Hot Creek and Hot Creek GorgeUSGS: Long Valley Caldera Virtual TourU.S. Geological Survey Volcano Hazards Program: Long Valley Observatory website
Hot springs of California Rivers of Mono County, California Rivers of the Sierra Nevada (United States) Tributaries of the Owens River Inyo National Forest Rivers of Northern California Hot springs of Mono County, California Rivers of the Sierra Nevada in California