That networks entrance cave on the east side is a very difficult access being about 1,000 feet from the Canyon rim and still about 2,000 feet above the Colorado river at the infamous Quagunt Rapids in Marble canyon. The Pharaoh interred there is known from the record, his expedition was a cooperative with the Indus and Phoenicians. The Site in NM is not connected with this, nor is the La Junta CO Site which has the oldest post-Exodus Hebrew petroglyphs besides those there in the area of the real Sinai in NW Arabia's Hijaz range.