Haleakala crater, Maui, Hawaii 1979

View of Haleakala crater, Maui, looking toward the eastern wall. Haleakala (lit. House of the Sun) is one of Hawaii's youngest volcanoes (750,000 years) still considered active, having last erupted in 1790. The summit is 10,023 feet (3,000 meters) in elevation. The crater is 3000ft. deep, and coves an area of 7.5 miles x 2.5 miles. Because of its barren terrain and "lunar landscape" American astronauts trained here prior to making their epic voyage to the moon. The hiking trail across the crater is 11 miles long and traverses some amazing scenery from the dry alpine zone at the summit past red, yellow and gray cinder cones and black lava flows. It then descends through lush rainforest and ferns of Kaupo gap, a large stream-cut canyon on the southeastn side partly filled in by lava flows, where it is often raining or dripping with mist (annual rainfall here is 250"/630cm), to emerge at the refreshing pools of Kipahulu or Kaupo settlement on the south-eastern coast. This image shows areas of solidified black lava in the foreground and red cinder cones towards the back in front of the main crater wall.