Colorado River Basin Stratigraphy

Lexicon of Colorado Plateau Stratigraphy
Below is a list of named stratigraphic units described in USGS publications and other sources. Aztec Sandstone Barker Dome Tongue (Cliffhouse Ss.) Bass Formation Baxter Formation Bidahochi Formation Bitter Ridge Member (Horse Spring Fm.) Black Box Formation Blair Formation Black Dragon Member (Moenkopi Fm.) Blue Gate Member (Mancos Shale) Boat Mesa Formation Bonanza King Formation Brady Canyon Member (Toroweap Fm.) Bridger Formation Bright Angel Shale Browns Park Formation Brushy Basin Member (Morrison Fm.) Buck Tongue (Mancos Shale) Burrow Canyon Formation Caanon Peak Formation Callville Formation Cannonville Member (Entrada Formation) Cardenas Lava Carmel Formation Castlegate Sandstone Cedar Mesa Sandstone Cedar Mountain Formation Chinle Formation Chisholm Shale Chuar Group Church Rock Member (Chinle Fm.) Claron Formation Cliffhouse Sandstone Member (Mesaverde Fm.) Coconino Sandstone Colton Formation Co-op Canyon Member (Carmel Fm.) Crystal Creek Member (Carmel Fm.) Curtis Formation Cutler Group (Formation) Dakota Sandstone De Chelley Sandstone Dinosaur Canyon Member (Moenave Fm.) Dinwoody Formation Doughnut Shale Dox Sandstone Drip Tank Member (Straight Cliffs Fm.) Duchesne River Formation Dunderberg Shale Elephant Canyon Formation Entrada Sandstone Ericson Sandstone (Mesaverde Group) Escalante Member (Entrada Fm.) Esplande Formation Ferron Sandstone Member (Mancos Shale) Flagstaff Limestone Fort Union Formation Fossil Mountain Member (Kaibab Ls.) Frenchman Mountain Dolomite Frontier Formation Galeros Formation Glen Canyon Group Grand Canyon Supergroup Green River Formation Gunsight Butte Member (Entrada Fm.) Hakatai Shale Halgaito Member (Cutler Fm.) Harrisburg Member (Kaibab Ls.) Hermit Shale Hermosa Group Holbrook Member (Moenkopi Fm.) Honaker Trail Formation Horse Spring Formation Hoskinnini Member (Moenkopi Fm.) Hualapai Member (Muddy Creek Fm.) Humbug Formation John Henry Member (Straight Cliffs Fm.) Judd Hollow Member (Carmel Fm.) Kaibab Limestone Kaiparowitz Formation Kayenta Formation Kwagunt Formation Lamb Point Tongue (Navajo Ss.) Laney Member (Green River Fm.) Lewis Shale Lodore Formation Lovell Wash Member (Horse Spring Fm.) Lyndon Limestone Madison Formation Manakacha Formation Mancos Shale Masok Member (Mancos Shale) Menefee Formation (Mesaverde Group) Mesaverde Formation (or Group) Moenave Formation Moenkopi Formation Monitor Butte Member (Chinle Fm.) Monte Cristo Limestone Moody Canyon Member (Moenkopi Fm.) Moqui Member (Moenkopi Fm.) Morgan Formation Morrison Formation Mossback Member (Chile Fm.) Mount Dutton Formation Mowry Shale Muav Limestone Muddy Creek Formation Muddy Peak Limestone Muley Canyon Member (Mancos Shale) Nankoweap Formation Navajo Sandstone Nopah Dolomite North Horn Formation Nugget Formation Organ Rock Formation Owl Rock Member (Chinle Fm.) Osiris Tuff Owiyukuts Complex Page Sandstone Pakoon Formation Paradox Formation Paria River Member (Carmel Fm.) Park City Formation Petrified Forest Member (Chinle Fm.) Phosphoria Formation Pictured Cliffs Sandstone Pinkerton Trail Formation Pink Hollow Formation Pioche Shale Point Lookout Sandstone (Mesaverde) Precambrian-age rocks of the Colorado Plateau Quaternary-age rocks of the Colorado Plateau Queantoweap Sandstone Rainbow Gardens Member (Horse Spring Fm.) Red Sandstone Red Creek Quartzite Redwall Limestone Rock Canyon Member (Moenkopi Fm.) Rock Springs Formation Rocks of the Grand Wash Trough Romana Sandstone Round Valley Limestone Salt Wash Member (Morrison Fm.) San Rafael Group Sego Sandstone (Mesaverde) Seligman Member (Toroweap Fm.) Shinarump Conglomerate (Chinle Fm.) Shinumo Quartzite Sixtymile Formation Smoky Hollow Member (Straight Cliffs Fm.) Springdale Sandstone Member (Moenave Fm.) Shnabkaib Member (Moenkopi Fm.) Sinawava Member (Temple Cap Fm.) Sinbad Limestone Member (Moenkopi Fm.) Straight Cliffs Formation Stump Formation Sultan Limestone Summerville Formation Supai Group Surprise Canyon Formation Tapeats Sandstone Temple Butte Formation Temple Cap Formation Temple Mountain Member (Chinle Fm.) Tenney Canyon Member (Kayenta Fm.) Thumb Member (Horse Spring Fm.) Tibbet Canyon Member (Straight Cliffs Fm.) Tiddwell Member (Morrison Fm.) Timpoweap Member (Moenkopi Fm.) Tipton Shale Member (Green River Fm.) Tonto Group Toroweap Formation Torrey Member (Moenkopi Fm.) Tropic Shale Tunuck Member (Mancos Shale) Uinta Formation Uinta Mountain Group Virgin Limestone Member (Moenkopi Fm.) Vishnu Basement Rocks Volcanic rocks of the Colorado Plateau Wahweap Formation Wanakah Formation Wasatch Group Watahomigi Formation Weber Sandstone Wescogame Formation (Supai Group) White Rim Sandstone White Throne Member (Temple Cap Fm.) Whitmore Point Member (Moenave Fm.) Wilkins Peak Member (Green River Fm.) Wingate Sandstone Winsor Member (Carmel Fm.) Wood Ranch Member (Toroweap Fm.) Wupatki Member (Moenkopi Fm.)	Rock units listed by geologic age Click here to see a composite columnar stratigraphic section for the Southwestern Colorado Plateau Click here to see a series of thematic maps about the Southern Colorado Plateau Region.

* show accepted USGS usage. Note that data on this page is modified from information available via the National Geologic Map Database GEOLEX: http://ngmdb.usgs.gov/Geolex/geolex_qs.html.

Lexicon of Colorado Plateau Stratigraphy