Santa Clara Volcano is a

volcanic field A volcanic field is an area of Earth's crust that is prone to localized volcanic activity. The type and number of volcanoes required to be called a "field" is not well-defined. Volcanic fields usually consist of clusters of up to 100 volcanoes ...

and

lava flow Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a moon onto its surface. Lava may be erupted at a volcano or through a fracture in the crust, on land or und ...

in the Diamond Valley in Washington County,

Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

. The most prominent features are two

cinder cone A cinder cone (or scoria cone) is a steep conical hill of loose pyroclastic fragments, such as volcanic clinkers, volcanic ash, or scoria that has been built around a volcanic vent. The pyroclastic fragments are formed by explosive eruptions o ...

s that rise above

Snow Canyon State Park Snow Canyon State Park is a state park in Utah, located in the Red Cliffs Desert Reserve. The park features a canyon carved from the red and white Navajo sandstone of the Red Mountains, as well as the extinct Santa Clara Volcano, lava tubes, ...

. The southern cinder cone and most of the north cinder cone is within the boundaries of Snow Canyon State Park. The city of

St. George, Utah St. George is a city in and the county seat of Washington County, Utah, United States. Located in southwestern Utah on the Arizona border, it is the principal city of the St. George Metropolitan Statistical Area (MSA). The city lies in the northe ...

is located in a volcanic field. The date of the last eruption is unknown.

References

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External links

Volcanoes of Utah Mountains of Utah Volcanic fields of Utah Mountains of Washington County, Utah Pleistocene volcanoes Holocene volcanoes Inactive volcanoes Quaternary United States Cinder cones of the United States {{Utah-geo-stub