Aast is a commune in the Pyrénées-Atlantiques department in the Nouvelle-Aquitaine region in southwestern France. Aast is the first co…Aast is a commune in the Pyrénées-Atlantiques department in the Nouvelle-Aquitaine region in southwestern France. Aast is the first commune in France by alphabetical order. The village is situated on the plateau of Ger and is composed of a dozen scattered houses. Aast is 20 km east of Pau and 20 km north of Lourdes. Access to the commune is by road D70 then D311 north-east from Gardères, road D64 north-west from Ger, and road D311 when coming south from Ponson-Dessus. Other country roads can also be used to access the commune.