sentence: Crater Lake is also the ninth deepest lake in the world.
sentences_before: The lake has an average depth of . Its maximum depth is . The depth changes slightly as the weather changes. On the basis of maximum depth, Crater Lake is the deepest lake in the United States. It is the second deepest in North America, after Great Slave Lake in Canada.
concept_name: Crater Lake
headings: Crater Lake Dimensions and depth
categories: Geography of Oregon Lakes in the United States Volcanoes in the United States Calderas