Geologic units in Wayne county, Utah

Bluff Ss, Summerville Fm, Curtis Fm, Entrada Ss, and Carmel Formation (Middle to Late Jurassic) at surface, covers 16 % of this area

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

Glen Canyon Group (Early Jurassic) at surface, covers 15 % of this area

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

Eolian deposits (Quaternary) at surface, covers 12 % of this area

Eolian deposits

Mancos Shale (Late Cretaceous) at surface, covers 11 % of this area

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

Miocene volcanic rocks, undivided (Late Oligocene to Middle Miocene) at surface, covers 8 % of this area

In Western Utah: Quichapa Group and other volcanic rocks (Tmb,Tmr,Tma). In Central Utah: Silver Shield Latite (17 my) and Pinyon Creek Conglomerate.

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

Alluvium and colluvium

Moenkopi Formation (Early Triassic) at surface, covers 6 % of this area

Moenkopi Formation.

Morrison Formation (Brushy Basin and Salt Wash Members) (Late Jurassic) at surface, covers 4 % of this area

Morrison Formation (Brushy Basin and Salt Wash Members).

Chinle Shale and Shinarump Conglomerate Member (Late Triassic) at surface, covers 3 % of this area

Chinle Shale and Shinarump Conglomerate Member.

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.

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

Older alluvial deposits

Dakota Ss and Cedar Mtn. or Burro Canyon Formations (Cretaceous) at surface, covers 3 % of this area

Dakota Ss and Cedar Mtn or Burro Canyon Formations.

Isom Fm, Needles Range Fm, and Bullion Canyon Volcanics (Late Eocene to Oligocene) at surface, covers 2 % of this area

In Cedar City area: Isom Fm and Needles Range Fm (29 my). In Marysvale area: Bullion Canyon Volcanics.

Basalts (Pliocene) at surface, covers 2 % of this area

Basalts

Landslides (Quaternary) at surface, covers 2 % of this area

Landslides

Alluvial materials, Axtell and Harkers Formations (Pliocene to Quaternary) at surface, covers 0.7 % of this area

Alluvial materials, Axtell and Harkers Formations

Glacial deposits (Quaternary) at surface, covers 0.7 % of this area

Glacial deposits

Bald Knoll and Gray Gulch Formations (Late Eocene) at surface, covers 0.6 % of this area

Bald Knoll and Gray Gulch Formations.

Kaibab Limestone (Early Permian) at surface, covers 0.4 % of this area

Kaibab Limestone.

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

Rico Formation.

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.

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

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

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

Flagstaff Formation.