"They're images of Seth and some mentions of Amun having to do with Seth, as well." - Salima Ikram
http://www.archaeology.org/
Set and Amun have appeared together on a stela and a lintel.

I'm not sure how near Dakhleh is to Kharga, but they are both western desert oases. Here is a drawing of a rock carving found at Dakhleh:


The Petroglyph Unit of the Dakhleh Oasis Project reports in their 2006 newsletter:
"A Seth animal figure of clearly Dynastic origin is superimposed on the animals in the central part of the panel and it is almost like a stamp,
establishing the chronological sequence." © The Polish Centre of Mediterranean Archaeology