The Pleasant Valley petroglyph site is small, consisting of roughly a dozen pecked images. They are located just a short distance from the site of the Serrano village of Squaw Tank. More than likely these petroglyphs were placed here during the time that the Serrano inhabiting the village site, thus placing these petroglyphs at around 1000 A.D..
The designs are mostly considered to be entoptic (created during a state of altered consciousness).
Some of the petroglyphs have been damaged in recent years by vandals, likely due to the close proximity of a road that runs through the valley.