Geologic units in Daggett county, Utah

Uinta Mountain Group (including Red Pine Shale) (Proterozoic Y) at surface, covers 46 % of this area

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

Alluvium and colluvium (Quaternary) at surface, covers 7 % of this area

Alluvium and colluvium

Older alluvial deposits (Quaternary) at surface, covers 5 % of this area

Older alluvial deposits

Bishop Conglomerate (Oligocene) at surface, covers 5 % of this area

Bishop Conglomerate.

Glacial deposits (Quaternary) at surface, covers 4 % of this area

Glacial deposits

Mancos Shale, Frontier Ss, and Mowry Shale (Late Cretaceous) at surface, covers 4 % of this area

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

Duchesne River, Uinta and Bridger Formations (Middle Eocene to Early Oligocene) at surface, covers 4 % of this area

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

Landslides (Quaternary) at surface, covers 4 % of this area

Landslides

Browns Park Formation (Miocene) at surface, covers 3 % of this area

Browns Park Formation.

Wasatch/Colton Formations and Flagstaff Limestone (Early to Middle Eocene) at surface, covers 3 % of this area

Wasatch/Colton Formations and Flagstaff Limestone.

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

Weber Sandstone.

Park City Formation (Permian) at surface, covers 2 % of this area

Park City Formation.

Red Creek Quartzite (Proterozoic W) at surface, covers 2 % of this area

Red Creek Quartzite (20,000 feet thick) 2.3 billion years old.

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

Nugget (Navajo) Sandstone.

Mesaverde Group (Late Cretaceous) at surface, covers 1 % of this area

Mesaverde Group.

Curtis Fm, Entrada Ss, and Carmel Fm (Middle to Late Jurassic) at surface, covers 1 % of this area

Curtis Fm, Entrada Ss, and Carmel Fm.

Madison Limestone (Mississippian) at surface, covers 1 % of this area

Madison Limestone.

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

Morrison Formation (Dinosaur National Monument).

Moenkopi and Dinwoody Formations (Early Triassic) at surface, covers 1.0 % of this area

Moenkopi and Dinwoody Formations.

Dakota and Cedar Mountain Formations (Cretaceous) at surface, covers 0.8 % of this area

Dakota and Cedar Mountain Formations.

Morgan Formation and Round Valley Limestone (Pennsylvanian) at surface, covers 0.4 % of this area

Morgan Formation and Round Valley Limestone.

Bridger Formation (Eocene) at surface, covers 0.2 % of this area

Greenish-gray, olive-drab, and white tuffaceous sandstone and claystone; lenticular marlstone and conglomerate.

Wasatch Formation - Main Body (Paleocene-Eocene) at surface, covers < 0.1 % of this area

Drab sandstone, drab to variegated claystone and siltstone; locally derived conglomerate around basin margins. Lower part is Paleocene.

Eolian deposits (Quaternary) at surface, covers < 0.1 % of this area

Eolian deposits

Fort Union Formation (Paleocene) at surface, covers < 0.1 % of this area

(Northwest, Southwest, and Central Wyoming) - Brown to gray sandstone, gray to black shale, and thin coal beds. (East Wyoming) - Light-colored massive sandstone, drab shale, and thick coal beds.

Humbug Formation and Deseret Limestone (Mississippian) at surface, covers < 0.1 % of this area

Humbug Formation and Deseret Limestone.

Mesaverde Group - Ericson Sandstone (Upper Cretaceous) at surface, covers < 0.1 % of this area

Rock Springs uplift. White massive sandstone; lenticular chert-grit conglomerate in upper part.

Mesaverde Group - Rock Springs Formation (Upper Cretaceous) at surface, covers < 0.1 % of this area

Rock Springs uplift. White to brown sandstone, shale, and claystone; numerous coal beds.

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

Lodore Sandstone.

Alluvium and Colluvium (Pleistocene-Holocene) at surface, covers < 0.1 % of this area

Clay, silt, sand, and gravel in flood plains, fans, terraces, and slopes.

Uinta Mountain Group (Middle Proterozoic) at surface, covers < 0.1 % of this area

Quartzite, conglomerate, and shale

Wasatch Fm (Tertiary) at surface, covers < 0.1 % of this area

Claystone, shale, and sandstone

Baxter Shale (Upper Cretaceous) at surface, covers < 0.1 % of this area

Gray to black soft sandy shale and shaly sandstone.

Red Creek Quartzite (Late Archean) at surface, covers < 0.1 % of this area

Metaquartzite, amphibolite, and mica schist. Present only in small area at Utah border in Uinta Mountains

Older gravels and alluviums (Quaternary) at surface, covers < 0.1 % of this area

Includes Slocum, Verdos, Rocky Flats, and Nussbaum Alluviums in east, and Florida, Bridgetimber, and Bayfield Gravels in southwest

Browns Park Fm (Tertiary) at surface, covers < 0.1 % of this area

Sandstone and siltstone; west of Park Range

Green River Formation - Laney Member (Eocene) at surface, covers < 0.1 % of this area

Oil shale and marlstone.