Alluvium and colluvium
Lake Bonneville deposits
Pilot Shale, Guilmette Formation, and Simonson and Sevy Dolomites.
Notch Peak, Orr, Lamb, Weeks, and Wah Wah Summit Formations.
Trippe Ls, Marjum/Pierson Cove Fms, Wheeler Shale, Swasey Ls, Whirlwind Fm, Dome Ls, Chisholm Fm, Howell Fm, and Pioche Fm.
Ely Springs Dm, Eureka Qtz, Crystal Peak Dm, Watson Ranch Qzt, and the Pogonip Group (Lehman Formation, Kanosh Shale, Juab, Wah Wah, Fillmore, and House Limestones).
Isom Fm (tuff), Needles Range Fm (ash-flow tuff), Escalante Desert Fm (ash-flow tuff), Sawtooth Peak Fm (ash-flow tuff), and Tunnel Springs Tuff.
Oquirrh Group (10,000+ feet thick) of Cedar Mountains and vicinity, is equivalent, in part to Arcturus Formation and Ely Limestone elsewhere
North Horn Formation.
Prospect Mountain Quartzite (3,500 feet thick).
Salt Lake Formation (?) and other Basin & Range valley-filling alluvial, lacustrine, and volcanic materials. Valley fill is more than 13,000 feet thick in the central part of Utah Valley.
Gerster Limestone, Plympton Formation and Kaibab Limestone.
Salt Lake Formation and other Basin & Range valley-filling alluvial, lacustrine, and volcanic materials. Valley fill is more than 8,000 feet thick in places and includes salt masses under the Sevier Desert.
Precambrian rocks of the Canyon Range (Mutual Fm, Inkom Fm, Caddy Canyon Qtz, Papoose Creek Fm, Blackrock Canyon Ls, and upper part of Pocatello Fm).
Maxfield Limestone (Opex Fm, Cole Canyon Dm, Bluebird Dm, Herkimer Ls, Dagmar Dm, and Teutonic Ls) and Ophir Formation.
In Western Utah: Quichapa Group and other volcanic rocks (Tmb,Tmr,Tma). In Central Utah: Silver Shield Latite (17 my) and Pinyon Creek Conglomerate.
Ochre Mountain Limestone (Great Blue equivalent) and Woodman Formation (Deseret Humbug equivalent).
McCoy Creek and Sheeprock Groups (10,000+ feet thick).
Ajax Dolomite and Opex Formation (upper member of Maxfield Limestone).
Price River Formation.
Older alluvial deposits
Iron Springs Formation of Cedar City Area (Kaiparowits Fm).
Tertiary volcanic rocks, undivided.
Fish Haven Dolomite and Opohonga Limestone.
Kaibab Limestone and Toroweap Formation.
Granitic rocks (140 my) in House Range and near Wendover.
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.
Moenkopi (in Blue Mountain) and Thaynes (north of Confusion Range) Formations.
Sevier River Formation.
Coconino Sandstone, Supai Group, and Pakoon Formation.
Pinyon Peak Limestone and Victoria Formation.
In Northwestern Utah: Dacitic tuff (8.5 my). In Logan-Huntsville Allochthon: rhyolite.
Redwall Limestone (chert).
Unit is present in all counties. Some counties divided the alluvium into younger and older units, and some did not. For those that did not, or used other generalized terms for Quaternary rocks, the unit Qal has been used for the general undivided alluvium. Additionally, when polygons have been edited and changed to alluvium, Qal was used as the general value; hence it now is present in all counties. Qya-Younger alluvium: Map unit is used in Churchill, Elko, Esmeralda, Eureka, Humboldt, Lander, and Lincoln Counties where geologic information suggests better-defined younger versus older alluvium. It is mostly interchangeable with Qal, except that it implies some specifically younger Quaternary deposits.
Alluvial materials, Axtell and Harkers Formations
Quartz Monzonite (in Cedar City area) and monzonite and granite (in Marysvale area).
Chinle Formation and Shinarump Conglomerate Member.
Thaynes Formation and Woodside Shale.
Duchesne River, Uinta and Bridger Formations
Green River Formation.
In Cedar City area: Isom Fm and Needles Range Fm (29 my). In Marysvale area: Bullion Canyon Volcanics.
Park City and Phosphoria Formations.
Mud and salt flats
Silver City Monzonite (31 my), Sunrise Peak Monzonite Porphyry, Swanson Quartz Monzonite