Cardona (Catalan pronunciation: [kəɾˈðonə]) is a town in the Spanish region of Catalonia, in the province of Barcelona; about 90 km (56 mi) northwest of the city of Barcelona, on a hill almost surrounded by the river Cardener, a branch of the Llobregat.

The salt forms a mountain mass (called Muntanya de Sal) covered by a thick bed of a reddish-brown clay, and apparently resting on a yellowish-grey sandstone.

The hill has been worked like a mine since Roman times; pieces cut from it have been carved by artists in Cardona into images, crucifixes and many articles of an ornamental kind.

The movie Chimes at Midnight, by Orson Welles, was filmed at the castle in Cardona.

Media related to Cardona, Spain at Wikimedia Commons