Morning Fountain

High (over 200 m) fountain from Pu'u 'O'o in early morning light. Fountains feed 'a'a flows to northeast. The characteristic rough, blocky surface of a cooled 'a'a flow is visible at the margins of the flow. The river of lava inside the channel travels at a much greater speed than the front of the flow advances (photo by R.W. Decker, 10/5/83, RD108333)