Lostorf is a municipality in the district of Gösgen in the canton of Solothurn in Switzerland.
Lostorf village
Hillside and Wartenfels Castle near Lostorf
Aerial view (1953)
Gösgen District is one of the ten districts of the canton of Solothurn, Switzerland, situated to the northeast of the canton. Together with the Olten District, Gösgen forms the electoral district of Olten-Gösgen. It has a population of 24,793.
Niedergösgen and the Gösgen Nuclear Power Plant