sentence: Death Valley has many famous and unusual geographical features in it.
sentences_after: Some of these features include sand dunes, salt flats, colorful rocks, and tall mountains. Large parts of Death Valley are below sea level. One feature, named Badwater Basin, is the lowest place in North America. It is  below sea level. The salt flats are another famous feature in Death Valley.
concept_name: Death Valley
headings: Death Valley Geography
categories: Deserts Geography of California Valleys in the United States Wilderness Areas of the United States