What is the deepest lake in the United States?

The deepest lake in the United States is Crater Lake, a volcanic crater in southern Oregon. Its deepest measured depth is 1,949 feet (594 meters). It is the ninth-deepest lake in the world. It is an amazing lake because no rivers flow into it or out of it. The water level in the lake is a balance between rainfall, groundwater flow and evaporation.The lake was formed between 6,000 and 8,000 years ago.