Using a flash held at a steep angle to the panel, some of the petroglyphs become more visible.

Try moving the light around in the RTI viewer below, to see what you can spot. Check out the anthropomorph (human figure) on the left side, difficult to impossible to spot in other views.

Note: If you see an error message below, please copy and paste chrome://settings/system into the Chrome search bar and toggle “Use hardware acceleration when available” to off.