I returned to Cow Cove recently when I was camping at Sunrise Rock in the Mojave Desert. The petroglyphs at Cow Cove are fun to explore, and relatively undamaged by vandals. On this visit, I explored the surrounding area and discovered more glyphs less than a half mile from the main group.
Here's a few photos taken from my camp site near Sunrise Rock. The first one looks south across the Joshua trees toward Clark Mountain in the far distance.
The second one shows Venus above Kessler peak just before sunrise. If it weren't for an iPhone app, I wouldn't know what that star was, and I couldn't pretend to be smart. Technology is great.