Crater Lake (Klamath: giiwas) is a caldera lake in the western United States, located in south-central Oregon. It is the main feature of Crater Lake National Park and is famous for its deep blue color and water clarity. The lake partly fills a nearly 2,148-foot (655 m)-deep caldera that was formed around 7,700 (± 150) years ago by the collapse of the volcano Mount Mazama. There are no rivers flowing into or out of the lake; the evaporation is compensated for by rain and snowfall at a rate such that the total amount of water is replaced every 250 years. With a depth of 1,949 feet (594 m), the lake is the deepest in the United States. In the world, it ranks tenth for maximum depth, and third for mean (average) depth. (from: https://en.wikipedia.org/wiki/Crater_Lake)

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• This was an experiment with software that filled in missing parts of an image. See the next image for the original. This was an experiment with software that filled in missing parts of an image. See the next image for the original.
• This is the original of the previous image, with the border regions missing. This is the original of the previous image, with the border regions missing.
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