Tassili n'Ajjer is a mountain range in the Sahara desert in southeast Algeria; North Africa. It extends about 500 km. The nearest town is Djanet; about 10 km southwest of the range. Much of the range; including the cypresses and archaeological sites; is protected in a National park; Biosphere Reserve and World Heritage Site; named the Tassili n'Ajjer National Park. The range is noted for its prehistoric rock paintings and other ancient archaeological sites; dating from neolithic times when the local climate was much moister; with savannah rather than desert. The art depicts herds of cattle; large wild animals including crocodiles; and human activities such as hunting and dancing. The art has strong stylistic links to the pre-Nguni Art of South Africa and the region; executed in caves by the San Peoples before the year 1200 BCE.