Here is an inspiring view of Crater Lake - that which is left of grim old Mt. Mazama - the deepest and bluest lake in the world. It measures two thousand feet in depth and the intensity of its color is almost unbelievable even while you look at it. Many Alpine lakes are blue under some lights. The deep blueness of Crater Lake may possibly be due to mineral which the water holds in solution; yet a glassful of the water is as clear as the clearest. Its cliffs from skyline to surface are a thousand feet high, and its color may be due in part to these surrounding walls and to its enormous depth. From the rim, a narrow margin of the water along the walls appears to be sea-green. The lake has no visible inlet or outlet as it occupies the great cavity left by Mt. Mazama when it disappeared into its own depths. It is a gem of wonderful color in a setting of pearly lavas relieved by patches of pine-green and snow-white - a gem which varies in hue with every atmospheric change and every shift of light. Because of the unique character and extraordinary beauty of the lake called by Joaquin Miller, 'The Sea of Silence', Crater Lake National Park was established in 1902.