I wouldn't have believed it had I not seen it myself
We went on a hike to the petroglyph of the solstice snake.
There is a 20 foot long snake etched into the rock called the solstice snake. The day before through the day after of summer solstice, around 11 AM local time, the sunlight goes through a crack on one of the monolithic rocks and projects an arrowhead of light on the head of the snake. Unbelievably cool looking and I am glad I made it, but it was a tough hike, 9.5 miles 97 degrees F, only 4% humidity though. Quite a bit of rock scrambling to get there and I drank almost a gallon of water on the hike.
The photo after the snake with the arrow on it shows roughly where the crack in the rock is.
Some other nice photos from along the way. A lot of other petroglyphs.
This place is great if you love the outdoors.

Peter