Earth's Shadow & Belt of Venus, Crater Lake, Oregon Imaged by Steve Kluge (Geosciences site) "After several days of incredibly clear, dry weather in late July, 2004, my family and I were treated to this spectacular evening view across Crater Lake in southern Oregon. About 7000 years ago, Mt. Mazama, one of the Cascade volcanos formed by melting in the subduction zone that underlies the Pacific Northwest, collapsed in a catastrophic eruption leaving the caldera that's today occupied by Crater Lake. Crater Lake is remarkable in several regards: it is deep - 594 m (1,949 ft) at it's deepest, quite clear, it has no inlets or surface outlets - precipitation is balanced almost perfectly by evaporation and whatever seeps into the earth under the lake, and it's remarkably blue.    This photo was taken looking east as the Sun set behind us. Mt. Scott, on the western flank of the 'crater' (left of center on the horizon) is an old volcano (450,000 or so years old) that forms the oldest rocks in the Park.   Wizard Island, a more recent cinder cone, dominates the foreground." Image ©Steve Kluge, shown with permission.