Crater Lake National Park is the deepest lake in America (1949 ft) was formed by a collapsed volcano before. This ancient Caldera is atop Mount Mazama and also known for its vibrant blue color and purity. Believe it or not this resplendent lake there are no in-flowing streams, is fed solely by rain and snow. According to the National Park Service, it's the cleanest and clearest large body of water in the world. “Everything we see across the landscape today is the result of 7700 years of change” emphasized Mastrogiuseppe. Enjoy this spectacular view by setting them on your computer screens.