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| Bakgrunden av Crater Lake National Park, bakgrunder för PC av Crater Lake National Park,
wallpapers av Crater Lake National Park, download, friatt som är desktop, Windows, wallpapers. Enade tillstånd, USA, Amerika, amerikan, amerikanskt folk, US, område av intresse, naturliga skönheter, kulturellt intresse, allmänintresse, amerikansk Parks, lake, volcano, Mount Mazama, caldera, basin, St Helens, The lake was formed after the collapse of an ancient volcano, posthumously named Mount Mazama. This volcano violently erupted approximately 7700 years ago. That eruption was 42 times as powerful as the 1980 eruption of Mt. St. Helens. The basin, or caldera, was formed after the top 5000 feet of the volcano collapsed. Subsequent lava flows sealed the bottom, allowing the caldera to fill with approximately 4.6 trillion gallons of water from rainfall and snow melt, to create the seventh deepest lake in the world at 1,932 feet.. |
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