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Jmr    MORRISON FORMATION AND RALSTON CREEK FORMATION (CLAYSTONE, SANDSTONE,    
         LIMESTONE, AND GYPSUM)                                                 
Jme    MORRISON FORMATION AND ENTRADA SANDSTONE                                 
Jms    MORRISON FORMATION AND SUNDANCE FORMATION (SANDSTONE, SHALE, CLAYSTONE,  
         AND LIMESTONE)                                                         
Jmse   MORRISON FORMATION, SUMMERVILLE FORMATION (SHALE AND SILTSTONE), AND     
         ENTRADA SANDSTONE                                                      
Jmce   MORRISON, CURTIS, AND ENTRADA FORMATIONS--In extreme southwestern        
         Moffat County, includes thin wedge of Carmel Formation (red siltstone  
         and sandstone) beneath Entrada                                         
Jmre   MORRISON, RALSTON CREEK, AND ENTRADA (OR EXETER) FORMATIONS              
Jmwe   MORRISON, WANAKAH, AND ENTRADA FORMATIONS