عين صالح
In Salah or officially Aïn Salah () is the oasis town in central Algeria that is the capital of the In Salah Province and In Salah District. It was once an important trade link of the trans-Saharan caravan route. As of the 2008 census it has a population of 32,518, up from 28,022 in 1998, with an annual growth rate of 1.5%, the lowest in the province. The village is located in the heart of the Sahara Desert region of northern Africa. The name "In Salah" comes from the term "good well" although the water is known for its rather unpleasant, salty taste.