See main article: Ubehebe Crater

Ubehebe Crater

Ubehebe Crater is a large volcanic crater of the Ubehebe Craters volcanic field in the northern half of Death Valley, in Death Valley National Park, California.-Geography:...

The Ubehebe Craters are an isolated group of overlapped maar

Maar

A maar is a broad, low-relief volcanic crater that is caused by a phreatomagmatic eruption, an explosion caused by groundwater coming into contact with hot lava or magma. A maar characteristically fills with water to form a relatively shallow crater lake. The name comes from the local Moselle...

s in the Cottonwood Mountains

Cottonwood Mountains

The Cottonwood Mountains range is found in Death Valley National Park in Inyo County, California, U.S.The range lies just to the northwest of the Panamint Range at the top of Death Valley, and run in a north-south direction....

, beyond the upper end of Death Valley

Death Valley

Death Valley is a desert valley located in Eastern California. Situated within the Mojave Desert, it features the lowest, driest, and hottest locations in North America. Badwater, a basin located in Death Valley, is the specific location of the lowest elevation in North America at 282 feet below...

, in Inyo County, California

Inyo County, California

-National protected areas:* Death Valley National Park * Inyo National Forest * Manzanar National Historic Site-Major highways:* U.S. Route 6* U.S. Route 395* State Route 127* State Route 136* State Route 168* State Route 178...

, U.S.

They were formed during a period of phreatic eruption

Phreatic eruption

A phreatic eruption, also called a phreatic explosion or ultravulcanian eruption, occurs when rising magma makes contact with ground or surface water. The extreme temperature of the magma causes near-instantaneous evaporation to steam, resulting in an explosion of steam, water, ash, rock, and...

s along a fault line in Death Valley National Park

Death Valley National Park

Death Valley National Park is a national park in the U.S. states of California and Nevada located east of the Sierra Nevada in the arid Great Basin of the United States. The park protects the northwest corner of the Mojave Desert and contains a diverse desert environment of salt-flats, sand dunes,...

.

The youngest volcanic feature is Ubehebe Crater

Ubehebe Crater

Ubehebe Crater is a large volcanic crater of the Ubehebe Craters volcanic field in the northern half of Death Valley, in Death Valley National Park, California.-Geography:...

. Immediately south of Ubehebe Crater lies Little Hebe Crater, the second oldest maar in the Ubehebe Craters volcanic field.

See also

• Geology of the Death Valley area
  Geology of the Death Valley area
  The exposed geology of the Death Valley area presents a diverse and complex set of at least 23 formations of sedimentary units, two major gaps in the geologic record called unconformities, and at least one distinct set of related formations geologists call groups...
  
  
• Racetrack Playa
  Racetrack Playa
  The Racetrack Playa, or The Racetrack, is a scenic dry lake feature with "sailing stones" that leave linear "racetrack" imprints. It is located above the northwestern side of Death Valley, in Death Valley National Park, Inyo County, California, U.S.....
  
  

• Category: Death Valley
• Category: Maars of the United States
• Category: Protected areas of the Mojave Desert
• Category: Volcanology
• Category: Volcanoes of California