Geologic units in Wasatch county, Utah

Duchesne River, Uinta and Bridger Formations (Middle Eocene to Early Oligocene) at surface, covers 28 % of this area

Duchesne River Fm, Uinta Formation (south of Uinta Mtns.) and Bridger Formation (north of Uinta Mtns.).

Keetley Volcanics (Late Eocene to Oligocene) at surface, covers 13 % of this area

Keetley Volcanics

Eastern Uinta Basin Members of the Green River Formation (Eocene) at surface, covers 9 % of this area

Eastern Uinta Basin Members of the Green River Formation (Evacuation Creek Mbr, Parachute Creek Mbr (oil shale), Garden Gulch Mbr, and Douglas Creek Mbr.).

Alluvium and colluvium (Quaternary) at surface, covers 9 % of this area

Alluvium and colluvium

Oquirrh Group, including Bridal Veil Limestone (Pennsylvanian to Permian) at surface, covers 9 % of this area

Oquirrh Group (maximum thickness 25,000 feet), including Bridal Veil Limestone.

Glacial deposits (Quaternary) at surface, covers 3 % of this area

Glacial deposits

Bishop Conglomerate (Oligocene) at surface, covers 3 % of this area

Bishop Conglomerate.

Mesaverde Group (Late Cretaceous) at surface, covers 3 % of this area

Mesaverde Group.

Weber Sandstone (Pennsylvanian to Permian) at surface, covers 2 % of this area

Weber Sandstone.

Curtis Fm, Entrada Ss, and Carmel Fm (Middle to Late Jurassic) at surface, covers 2 % of this area

Curtis Fm, Entrada Ss, and Carmel Fm.

Humbug Formation and Deseret Limestone (Mississippian) at surface, covers 2 % of this area

Humbug Formation and Deseret Limestone.

Diamond Creek Sandstone and Kirkman Limestone (Early Permian) at surface, covers 1 % of this area

Diamond Creek Sandstone and Kirkman Limestone.

Nugget (Navajo) Sandstone (Early Jurassic) at surface, covers 1 % of this area

Nugget (Navajo) Sandstone.

North Horn Formation (Late Cretaceous to Eocene) at surface, covers 1 % of this area

North Horn Formation.

Uinta Mountain Group (including Red Pine Shale) (Proterozoic Y) at surface, covers 1 % of this area

Uinta Mountain Group (24,000 feet thick along the Green River). Red Pine Shale (950 my).

Morrison Formation (Late Jurassic) at surface, covers 1 % of this area

Morrison Formation (Dinosaur National Monument).

Mancos Shale, Frontier Ss, and Mowry Shale (Late Cretaceous) at surface, covers 1 % of this area

Mancos Shale (Hilliard Shale and Blair Formation north of Uinta Mountains), Frontier Ss, and Mowry Shale.

Moenkopi and Dinwoody Formations (Early Triassic) at surface, covers 0.9 % of this area

Moenkopi and Dinwoody Formations.

Thanes Formation, Woodside Shale, and Dinwoody Formation (Early Triassic) at surface, covers 0.9 % of this area

Thanes Formation, Woodside Shale, and Dinwoody Formation.

Clayton Peak and Pine Creek stocks (Late Eocene to Oligocene) at surface, covers 0.8 % of this area

Clayton Peak and Pine Creek stocks.

Older alluvial deposits (Quaternary) at surface, covers 0.8 % of this area

Older alluvial deposits

Chinle Shale and Garta Sandstone Member (Late Triassic) at surface, covers 0.6 % of this area

Chinle Shale and Garta Sandstone Member.

Park City Formation (Permian) at surface, covers 0.6 % of this area

Park City Formation.

Great Blue Ls, Humbug Formation, and Deseret Limestone (Mississippian) at surface, covers 0.6 % of this area

Great Blue Ls, Humbug Formation, and Deseret Limestone.

Madison Limestone (Mississippian) at surface, covers 0.6 % of this area

Madison Limestone.

Lodore Sandstone (Early to Middle Cambrian) at surface, covers 0.4 % of this area

Lodore Sandstone.

Park City and Phosphoria Formations (Permian) at surface, covers 0.4 % of this area

Park City and Phosphoria Formations.

Dakota and Cedar Mountain Formations (Cretaceous) at surface, covers 0.4 % of this area

Dakota and Cedar Mountain Formations.

Landslides (Quaternary) at surface, covers 0.3 % of this area

Landslides

Doughnut Shale (Mississippian) at surface, covers 0.3 % of this area

Doughnut Shale.

Morgan Formation and Round Valley Limestone (Pennsylvanian) at surface, covers 0.2 % of this area

Morgan Formation and Round Valley Limestone.

Wasatch/Colton Formations and Flagstaff Limestone (Early to Middle Eocene) at surface, covers 0.2 % of this area

Wasatch/Colton Formations and Flagstaff Limestone.

Ankareh Shale (Middle to Late Triassic) at surface, covers 0.1 % of this area

Ankareh Shale.

Doughnut Formation (Mississippian) at surface, covers 0.1 % of this area

Doughnut Formation.

Morgan Formation and Round Valley Limestone (Pennsylvanian) at surface, covers 0.1 % of this area

Morgan Formation and Round Valley Limestone.

Fish Haven Dolomite and Opohonga Limestone (Ordovician) at surface, covers 0.1 % of this area

Fish Haven Dolomite and Opohonga Limestone.

Gardison and Lodgepole Limestones (Mississippian) at surface, covers < 0.1 % of this area

Gardison and Lodgepole Limestones.

Tintic Quartzite (Early to Middle Cambrian) at surface, covers < 0.1 % of this area

Tintic Quartzite.

Navajo/Nugget Sandstone (Early Jurassic) at surface, covers < 0.1 % of this area

Navajo/Nugget Sandstone.

Precambrian rocks of the Canyon Range (Proterozoic Z) at surface, covers < 0.1 % of this area

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).

Park City and Phosphoria Formations (Permian) at surface, covers < 0.1 % of this area

Park City and Phosphoria Formations.

Nugget Sandstone (Early Jurassic) at surface, covers < 0.1 % of this area

Nugget Sandstone.

Wasatch Formation (Late Paleocene to Early Eocene) at surface, covers < 0.1 % of this area

Wasatch Formation.

Bloomington Formation, Maxfield Limestone, and Ophir Formations (Middle Cambrian) at surface, covers < 0.1 % of this area

Bloomington Formation, Maxfield Limestone, and Ophir Formations.

St. Charles Formation and Nounan Dolomite (Middle Cambrian to Early Ordovician) at surface, covers < 0.1 % of this area

St. Charles Formation and Nounan Dolomite.