| Cliffs along north rim of the caldera rise about 1,000 feet 
      above the lake surface (elevation 6,173 feet). Llao Rock, the high point 
      on the left side of the image has an elevation of 8,049 feet. The deep blue 
      color of the lake is a reflection of the clear sky above and the great depth 
      of the water (not from any mineral content in the water!). |