Scrabble & Words with friends points
        
        
                    - petroglyphs is a valid Scrabble US word with a point value of 22
 
          
                    - petroglyphs is a valid Scrabble UK word with a point value of 22
 
          
                    - petroglyphs is a valid Words with friends word with a point value of 24
 
          
        
        Definition of petroglyphs
        
        
          - a carving or line drawing on rock (especially one made by prehistoric people) (noun)
         
        See definition of petroglyphs in Merriam Webster