Death Valley is a valley in California that is located southeast of the Sierra Nevada range in the Great Basin and the Mojave Desert, comprising much of Death Valley National Park. It runs north-south between the Amargosa Range to the east and the Panamint Range to the west; the Sylvania Mountains and the Owlshead Mountains form its northern and southern boundaries, respectively.
Death Valley is considered geologically one of the best examples of the Basin and Range configuration. It is the principal feature of the Mojave and Colorado Deserts Biosphere Reserve.
Temperatures in the Valley can range from up to 100°F in the day, to below freezing at nightª.