Ogam inscribed boulder

Christopher took us to a boulder near the stream bank and asked what we thought caused the peculiar striations in the granite. He thinks they are evidence of a Celtic presence in the area some 2,000 years ago.

I think they are a freak natural erosion pattern, although I can't say what would have caused them. Christopher said that is what the archaeologists he has brought here say, but the geologists say it is not natural. Chumash Indians he has shown it to say it is man-made, but not by them.

Another thought: Maybe it is the rock doodling of a California miner.

See http://www.equinox-project.com/nyerges.htm