 When you look down, you see this yellow sand everywhere. And in fact, in some of the edges, the rim around the crater, some of those rims are still filled with solid sand, like yellow sand, the same kind of sand that you get in the tailings of the modern-day gold mines in Johannesburg and around Johannesburg, what we call the mine dumps. It's like this yellowish sand. And, you know, in the 50s and 60s and 70s,