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Region
- Uinta Basin (Utah and Colo.)5
- Appalachian Basin4
- Fort Union Formation2
- Piceance Creek Basin (Colo.)2
- Powder River Basin (Wyo. and Mont.)2
- Utah2
- Colorado1
- ColoradoPiceance Creek Basin1
- Great Lakes Region (North America)1
- Michigan1
- San Pitch Mountains (Utah)1
- Uinta Mountains (Utah and Wyo.)1
- UtahJuab County1
- UtahSalt Lake County1
- UtahUtah County1
- Wasatch Plateau (Utah)1