]> 2026-04-16T07:28:39+02:00 Crater Lake 0 en 1902-05-22T05:00:00Z 2415891.7083333 42.94,-122.1 741.5 Crater Lake lies in the caldera of an ancient volcano called Mount Mazama that collapsed 7,700 years ago. It is the deepest lake in the United States and is noted for its vivid blue color and water clarity. There are two more recent volcanic islands in the lake, and, with no inlets or outlets, all water comes through precipitation. false park_crater-lake 756344 2020-02-27T10:56:27Z 2458906.9558681 2020-02-29T05:24:39Z 2458908.7254514 false Crater Lake 2 14184 634 268 0 Crater Lake#ill.en en Interlanguage reference 102 fr Interlanguage reference NPS name 102 fr NPS name