Kupa'ianaha lava shield and pond in September 1986 (~2 months after it formed). Notice the shape of the pond, with a large near-circular part and an elongate extension to the left. The main lava tube was fed from the end of the extension. When this photo was taken the pond was also overflowing to the right. A break-out low on the far side of Kupa'ianaha was feeding another surface flow that in this photo had almost reached the contact with 'a'a flows from Pu'u 'O'o (3 km uprift; at left).