Petroglyphs?

In the description of Desert Vista RV Resort in the RPI (Resort Parks International) book, it mentions "Petroglyphs 2 miles from Resort." We asked in the office about them when we checked in, but they didn't know anything about them. (We found out later that the resort has new owners, who haven't been here very long.)



Today we set off to do some exploring and stopped down the road on Hwy 60 at a little store that sold Buck knives and jewelry. We asked the proprietor about the petroglyphs and he knew right where they were, directing us back down the highway past our RV park a couple of miles. This area is mostly greasewood and palo verde trees with some saguero and ocotillo cacti amongst the rocks.

Alongside the old Highway 60 is a large pile of big boulders. This one is the one in the middle --

While the next two pictures are different views of the boulder on the top --

It's kind of a strange situation. These petroglyphs are not listed on any of the Arizona tourist sites or maps. The boulders are just off the road with no protection not signage whatsoever. When I looked them up on the Internet, I got several hits, but they were all reports from tourists or visitors -- one stated that some of the pictures looked to be Spanish in origin, while the rest were Native American...

An interesting mystery.