Was there any carving on the granite plug in the pictures linked above?

Is there another shot(higher clarity RAW format perhaps) of this plug, especially the bottom right quarter?

There appears, to me, a heiroglyph there. Knowing the 'ease of download with Jpegs' reason and the tendacies of artefacts in this format causing alot of "face in cloud" moments I was jsut wondering about the higher clarity possibility.

Regards,
Lobo-hotei
lobo

Treat the earth well, It was not given to you by your parents, It was loaned to you by your children.
Native American Proverb