Bald Knoll, also called Black Knoll, Buck Knoll or Corral Knoll, is a

cinder cone A cinder cone or scoria cone is a steep, volcanic cone, conical landform of loose pyroclastic rock, pyroclastic fragments, such as volcanic ash, clinkers, or scoria that has been built around a volcanic vent. The pyroclastic fragments are forme ...

Utah Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...

, in the

Southwestern United States The Southwestern United States, also known as the American Southwest or simply the Southwest, is a geographic and cultural list of regions of the United States, region of the United States that includes Arizona and New Mexico, along with adjacen ...

. It is the youngest volcano at the southwest portion of the

Paunsaugunt Plateau The Paunsaugunt Plateau (pronounced "PAWN-suh-gant") is a dissected plateau, rising to an elevation of , in southwestern Utah in the United States. Located in northern Kane County and southwestern Garfield County, it is approximately wide, and ...

and it consists of

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 ...

ic lava with a well-preserved

volcanic crater A volcanic crater is an approximately circular depression in the ground caused by volcanic activity. It is typically a bowl-shaped feature containing one or more vents. During volcanic eruptions, molten magma and volcanic gases rise from an ...

at its summit.

References

Volcanoes of Utah Cinder cones of the United States Basin and Range Province Landforms of Kane County, Utah Pleistocene cinder cones {{Utah-geo-stub