Sisteron in the context of "Mistralian norm"

Alpes-de-Haute-Provence (sometimes abbreviated as AHP; French pronunciation: [alp də ot pʁɔvɑ̃s] ; Occitan: Aups d'Auta Provença; lit. 'Alps of Upper Provence'), formerly until 1970 known as Basses-Alpes (French pronunciation: [basz‿alp], lit. 'Lower Alps'), is a department in the Provence-Alpes-Côte d'Azur region of France, bordering Alpes-Maritimes and Italy to the east, Var to the south, Vaucluse to the west, Drôme and Hautes-Alpes to the north. Formerly part of the province of Provence, it had a population of 164,308 in 2019, which makes it the 8th least populated department and the 94th most populated French department.

Alpes-de-Haute-Provence's main cities are Digne-les-Bains (prefecture), Manosque, Sisteron, Barcelonnette, Castellane and Forcalquier. Inhabitants are called the Bas-Alpins (masculine) or Bas-Alpines (feminine) in reference to the department's former name, Basses-Alpes, which was in use until 1970. Although the prefecture is Digne-les-Bains, the largest city is Manosque. Alpes-de-Haute-Provence's INSEE and postal code is 04.

Forcalquier (French: [fɔʁkalkje]; Provençal: Forcauquier [fuʀkɔwˈkje]) is a commune in the Alpes-de-Haute-Provence department in southeastern France.

Forcalquier is located between the Lure Mountain and Luberon mountain ranges, about 30 km (19 mi) south of Sisteron and 10 km (6.2 mi) west of the Durance river. During the Middle Ages it was the capital of Haute-Provence.

The Buëch (French pronunciation: [bɥɛʃ]; Occitan: Bueg Occitan pronunciation: [bɥetʃ]) is a river in southeastern France, a right tributary of the Durance. It is 85.3 km (53.0 mi) long. Its drainage basin is 1,478 km (571 sq mi). Its source is in the Dauphiné Alps, near the peak of Grand Ferrand. It flows generally southward for most of its course in the Hautes-Alpes département, and flows into the Durance at Sisteron.

Départements and towns along the Buëch include: