 Now they're in their 20s. Washington's boundary stones have been threatened by the elements over the centuries. Water, erosion, falling trees. But in more recent years, there's been an even bigger threat. Cars. So this is where it would be. We arrive at one of the boundary stone sites, a busy intersection. Instead of a stone, there's a bunch of debris from a car crash a few days earlier. Powers was one of the first people on the scene. You see all the car parts? Yes.