I will bet the glyphs say: water, this way; water ahead.
I remember reading somewhere that many of the Australian Aboriginal sacred drawings were maps and *deeds*, mostly to do with the presence and the *ownership* of water sources.
Intresting interpretation.
"This cave is mine." More like "Gilroy was here"?
I know of other petroglyphs next to a small stream near Pine Valley, Utah. A rather remote town north of St. George. "Just passing through, the water's yours. Don't hurt me." Followed by a signature? Gee, maybe I could write a book on deciphering petroglyphs?
In any event, no one claims to be able to translate or "decipher" any of the "codes".
yitbos
Actually, it says: "Be sure to drink your Ovaltine."