Crater Lake

Crater Lake  is a volcanic crater lake in south-central part of Oregon. It is the main feature of Crater Lake National Park and is famous for its deep blue color and water clarity. Actually, the sight of the lake is so beautiful that only the Indian chief was permitted to watch it.


The lake partly fills the caldera that was formed around 7,700 years ago by the collapse of the volcano Mount Mazama. No rivers flow 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  maximum 594 m, the lake is the deepest in the United States.


Crater Lake has two small islands. Wizard Island, located near the western shore of the lake, is a cinder conePhantom Ship, a natural rock pillar, is located near the southern shore.

The lake is 8.0 by 9.7 km across, and with a circumference of 35 km. The elevation of the caldera around 2200 m.