Lately I've noticed a few places that have these. Most often they're split rail, but I've seen other types of wooden fence like this. It's just 3 fence posts in a rough triangle with rails connecting them, as if someone started building a fence at the corners, then stopped. These corners are frequently randomly placed in a field, seemingly with no rhyme or reason. My first thought was as property markers, but the layout doesn't makes sense unless the properties in question are very odd shaped. Is there a point, or are these just decorations?