I found this amazing and mysterious group of man-made structures yesterday. There are five total, and each one is carefully made. The soil around each one is undisturbed and I saw no sign of recent people. From where I parked on a dirt road, I walked an hour through the desert up to this foothill that sits right up against a bare and rugged mountain range, just behind what you see here.
Each one is beautifully formed, made up of a combined possible hundreds of rocks, some of them quite heavy, I’m sure! They are around 3- 4.5 feet tall, of varying heights. They really do look like grave-markers, don’t they? This one has a little animal’s burrow underneath it.
Here’s a video of the site/landscape:
Each coral tube fossil is about as big around as my pinky. One of the best specimens I’ve come across! It was a big, solid thing, going who-knows how deep underground! Once, the entire area, way up through Nevada and further, was a shallow sea.