Geologic units in Emery county, Utah

Bluff Ss, Summerville Fm, Curtis Fm, Entrada Ss, and Carmel Formation (Middle to Late Jurassic) at surface, covers 19 % of this area

Bluff Ss, Summerville Fm, Curtis Fm, Entrada Ss, and Carmel Formation. Includes Arches National Park.

Mancos Shale (Late Cretaceous) at surface, covers 14 % of this area

Mancos Shale (Masuk Shale Mbr, Emery Sandstone Mbr, Blue Gate Shale Mbr, Ferron Sandstone Mbr, and Tununk Shale Mbr).

Eolian deposits (Quaternary) at surface, covers 9 % of this area

Eolian deposits

Moenkopi Formation (Early Triassic) at surface, covers 8 % of this area

Moenkopi Formation.

Glen Canyon Group (Early Jurassic) at surface, covers 7 % of this area

Glen Canyon Group (Navajo Ss, Kayenta Fm, and Wingate Ss). Includes Rainbow Bridge.

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

Alluvium and colluvium

Dakota Ss and Cedar Mtn. or Burro Canyon Formations (Cretaceous) at surface, covers 6 % of this area

Dakota Ss and Cedar Mtn or Burro Canyon Formations.

Morrison Formation (Brushy Basin and Salt Wash Members) (Late Jurassic) at surface, covers 5 % of this area

Morrison Formation (Brushy Basin and Salt Wash Members).

Mesaverde Group (Late Cretaceous) at surface, covers 5 % of this area

Mesaverde Group (Price River Fm, Castlegate Ss, Blackhawk Fm (coal), and Star Point Ss).

Mesaverde Group (Late Cretaceous) at surface, covers 4 % of this area

Mesaverde Group.

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

Older alluvial deposits

Cutler Group (Pennsylvanian to Early Permian) at surface, covers 3 % of this area

Cutler Group (White Rim Ss, De Chelly Ss, Organ Rock Shale, Cedar Mesa Ss, Halgaito Fm, and Elephant Canyon Fm). Includes Natural Bridges National Monument.

North Horn and Canaan Peak Formations (Late Cretaceous to Paleocene) at surface, covers 3 % of this area

North Horn and Canaan Peak Formations.

Wasatch/Colton Formations and Flagstaff Limestone (Early to Middle Eocene) at surface, covers 2 % of this area

Wasatch/Colton Formations and Flagstaff Limestone.

Chinle Shale and Shinarump Conglomerate Member (Late Triassic) at surface, covers 2 % of this area

Chinle Shale and Shinarump Conglomerate Member.

North Horn and Currant Creek Formations (Late Cretaceous to Paleocene) at surface, covers 1 % of this area

North Horn and Currant Creek Formations.

Eastern Uinta Basin Members of the Green River Formation (Eocene) at surface, covers 0.4 % 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.).

Flagstaff Formation (Late Paleocene to Early Eocene) at surface, covers 0.2 % of this area

Flagstaff Formation.

Kaibab Limestone (Early Permian) at surface, covers 0.2 % of this area

Kaibab Limestone.

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

Glacial deposits

Laccolithic intrusions mostly diorite porphyry (Oligocene) at surface, covers 0.1 % of this area

Laccolithic intrusions mostly diorite porphyry (24-28 my).

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

Landslides

Hermosa Group and Molas Formation (Mississipian to Pennsylvanian) at surface, covers < 0.1 % of this area

Hermosa Group (Honaker Trail Fm, Paradox Fm (oil, salt, potash), Pinkerton Trail Fm) and Molas Formation.

Rico Formation (Pennsylvanian to Permian) at surface, covers < 0.1 % of this area

Rico Formation.

Crazy Hollow Formation (Eocene) at surface, covers < 0.1 % of this area

Crazy Hollow Formation.