| Formation / Members | Thick- ness | Rock Type | ||
QUAT |
Alluvium & colluvium |
0-200 |
||
Glacial, pediment, & land slide deposits |
0-200 |
|||
MIOCENE |
Basalt flows of Grand Mesa |
0-1000 |
||
EOCENE |
Uinta Formation |
400 + |
||
Green River Fm |
Parachute Creek Member |
300-1100 |
||
Douglas Creek Member |
300-700 |
|||
Garden Gulch M |
100-300 |
|||
PALEOCENE |
Wasateh Formation |
200-2000 |
||
CRET |
Hunter Canyon Formation |
Ohio Creek Cg |
0-100 |
|
Main Body |
1100 |
|||
Mount Garfield Fm |
Upper part |
600 |
||
Upper Ss |
0-150 |
|||
Anchor Mine Tongue |
0-200 |
|||
Lower Ss |
0-180 |
|||
Mancos Shale |
4000 |
|||
Dakota Sandstone |
150 |
|||
Burro Canyon Fm |
50-120 |
|||
JURASSIC |
Morrison Fm |
Brushy Basin Mbr |
260-340 |
|
Salt Wash Mbr |
190-310 |
|||
Tidwell Member |
10-100 |
|||
Wanakah Formation |
20-50 |
|||
Entrada Sandstone |
60-200 |
|||
Kayenta Formation |
0-130 |
|||
Wingate Sandstone |
210-370 |
|||
TRIASSIC |
Chinle Formation |
80-120 |
||
pC (PROT) |
Vernal Mesa-type quartz monzonite; gneiss and schist |
NULL |
||
|
Data Sources:
*Still Gathering/Under Construction* USGS Special Publications by Various Authors Roadside Geology of Utah by Halka Chronic Field Guide: Northern Colorado Plateau by Keith Rigby Geologic History of Utah by Lehi Hintze- Purchase Information |

