In Southwestern Utah: In Cedar City area: Page Ranch Fm, Rencher Fm and Quichapa Group (24my). In Marysvale area: Joe Lott Tuff, Mt. Belknap Volcanics, Osiris Tuff and Mt. Dutton Formation.
State Utah
Name Basalts
Geologic age Early to Middle Miocene
Lithologic constituents
Igneous > Volcanic > Mafic-volcanic > Basalt (Flow)
Igneous > Volcanic > Mafic-volcanic > Basaltic-andesite (Flow)
Stratigraphic units Mill Creek, Hogback, Steamboat Mountain, Modena, Enterprise, Red Canyon

Hintze, L.F., 1980, Geologic map of Utah: Utah Geological and Mineral Survey, scale 1:500,000.

Rowley, P.D., Nealey, L. D., Unruh, D.M., Snee, L.W., Mehnert, H.H., Anderson, R E., and Gromme, C. S., 1995, Stratigraphy of Miocene ash-flow tuffs in and near the Caliente Caldera complex, southeastern Nevada and southwestern Utah: U. S. Geological Survey Bulletin B 2056, p. 47-88.

Rowley, P. D., Cunningham, C. G., Steven, T. A., Workman, J. B., Anderson, J. J., and Theissen, K.M., 2002, Geologic map of the central Marysvale volcanic field, southwestern Utah: - U. S. Geological Survey Geologic Miscellaneous Investigations Series Map I-2645-A, 1 sheet, scale 1:000,000.

NGMDB product
Counties Beaver - Garfield - Iron - Millard - Piute - Sevier