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   <petro 170>
  -- Area map of Blythe Geoglyphs (1,100 yrs) (Riverside Co., Map site #5)      | 
  
   <petro 150>
  -- Area map of petroglyphs at Corn Springs, CA        | 
  
   <petro 174> -- Corn Springs petroglyphs (eastern Riverside Co.)      | 
  
   <petro 151>
  -- Area map of petroglyphs at Rock Creek, CA      | 
 
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   <petro 184>
  -- Area map of Mule Canyon geoglyphs 
  (Riverside Co., Map site #3)      | 
  
   <petro 185> -- Mule Canyon geoglyphs  (Riverside Co., Maps site #3)      | 
  
   <petro 186>
  --Area map of Mule Tank petroglyphs (2,000 yrs) (Riverside Co., Map site #4)      | 
  
   <petro 187>
  -- Mule Tank petroglyphs (2,000 yrs) (Riverside Co., Map site  #4)      | 
 
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