NOTES
     Stratigraphic nomenclature differs in various parts of the State of 
Wyoming; therefore the State has been divided into several geographic areas in
order to show the localities where specific stratigraphic units occur.  The 
boundaries of the areas are approximate and remnants of some units are present 
beyond these boundaries.  The geographic areas used for rocks of Quaternary
and Tertiary age are shown on figure 1, and the areas for rocks of Mesozoic and
Paleozoic age are on figure 2.  Precambrian rocks are not listed geographically 
in the correlation diagrams and list of map units; however, in the description