round rocks as my triangle rocks aren't natural (I'm pretty sure of that!). They are however, and oddity. The driveway on the farm extends from the state highway we live on some 600+ feet to our front yard. All along the driveway I can find these triangle rocks, from one end to the other.
When I (well Jennifer actually) first noticed them I thought it was probably left over material from some project that the original owner had started, perhaps some tiling job or used in a mosaic. There's no other evidence of such a project though. I reasoned that there was some left over and they simply spread them around the gravel driveway to get rid of them.
This seemed a plausible reason for having them in the driveway near the house but when I was working on the new mailbox at the end of the driveway I noticed the rocks there. Upon further inspection these little triangle rocks are spread out randomly through the length of the driveway. It seems to me that it would be an awfully expensive use of rocks if that was the original intended purpose for these rocks.