Black Rock Desert - John Seach


Utah, USA

38.97 N, 112.50 W
summit elevation 1800 m
Volcanic field

Black rock volcanic field consists of a group of volcanic fields in south central Utah. It is the youngest volcano in Utah with lava flows at Ice Springs. Basalt lava flows extend from Black Rock Station north to Beaver Ridge, 15 km west of Meadow, Utah.

Deseret field is consists of basalt lava flows which cap a small plateau about 8 km southwest of the town of Deseret.

Pavant volcanic field consists of a prominent volcanic cone, Pavant Butte (Sugarloaf Mountain) located about 25 km west of Holden, Utah. The field contains basalt flows around and to the south of the butte. Pavant Butte is a large 270 m high tuff cone. The lava at Pavant field is mainly pahoehoe, and contains many lava tubes.

Kanosh Volcanic Field includes Black Rock Volcano. The volcano consists of a dissected cinder cone with basalt flows near the base.

Tabernacle volcanic field is located about 8 km northwest of Meadow. It is the smallest field in the Black Rock Desert region, covering an area of only about 12 sq km. The field is composed of basaltic flows which erupted from the base of Tabernacle Hill, a small tuff cone near the center of the field.

Ice Spring field is located about 15 km west of Fillmore and covers an area of 20 sq km. The field contains three large craters and several smaller ones. The large craters are Cresent (500 m diameter), Miter (300 m), and Terrace, a collapsed crater (300 m).

Cove Fort volcanic field is located southwest of Cove Fort, Utah. Cove Fort crater is composed of loose red cinder and ash and is 1 km in diameter. A lava flow extends 20 km SW of the crater.

Eruptions at Black Rock Desert

1290 ± 150