.0                                                                              
                SEDIMENTARY ROCKS OF TRIASSIC AGE                               
                                                                                
@kc    KAYENTA FORMATION (RED SILTSTONE, SHALE, AND SANDSTONE), WINGATE         
         SANDSTONE, AND CHINLE FORMATION (RED SILTSTONE AND SANDSTONE)          
@wc    WINGATE SANDSTONE AND CHINLE FORMATION                                   
@m     MOENKOPI FORMATION--Red siltstone, mudstone, sandstone, and local        
         gypsum                                                                 
@ch    CHUGWATER FORMATION--Red sandstone, siltstone, shale, and local          
         limestone and gypsum