I find petroglyphs fascinating.
The oft ambiguous message comes across time to tell the puzzled observers an important message that has lost context. Many are timeless, but this one seems to speak of a square-rigged ship seen sometime in the last two centuries. The message is an obscure one for modern day viewers as it lies miles from the center of civilization and on the far edge of a rainforest, but the tale was important enough for the maker to invest hours of effort to create. Did it express wonder at the enormous ship? Pleasure at the cargo it brought? Or horror at the loss of a civilization?
Wedding Rocks near Lake Ozette, Olympic National Park, Washington, USA. April, 2007.