Crater Lake (USA)

It is a crater lake located in the state of Oregon, USA, which is part of the Cascade Range. It is the main feature of Crater Lake (Crater Lake National Park) National Park and its famous deep blue color and the transparency of its waters, where: Besides the country's deepest lake. Lake partially fills a caldera of 1,220 meters in depth It was formed about 6850 years ago by the collapse of Mazama volcano