	To read geologic unit descriptions:

        
	1) In ArcMap, use Identify tool and click on polygon of interest.

        2) The 'SHEET' field is populated with the one of the following codes:
           
           A    Austin sheet
           B    Beaumont sheet
           H    Houston sheet
           P    Palestine sheet
           S    Seguin sheet
           W    Waco sheet

        3) The 'ABBREVIATION' field is populated with an abbreviation for the geologic unit.

	4) Open the sheet-specific .doc file in Microsoft Word and scroll down to the abbreviation.  The
           description is provided immediately below.