The Mining Museum is placed in La Union's lyceum for Workers, a centenary building designed by the architect Pedro Cerdan, dedicated at first to the education of boys and adults conning from the working world. This outstanding building has been remodeled and arranged for its new start as a museum.

With the new structure of the Mining Museum, the collections have been reunified into a single one with the generic name "Mining". All the museum exhibits have been arranged according to this criterion and visitors get to this concept little by little by going through the different showrooms of this museum, which is now a compulsory reference in the history of Spanish Mining.

Five spacious and bright rooms are the great frame for the collection "Mining" of this museum.
Room I, dedicated to the mining toolbag, has a big collection of tools, including: lamps, protections, mining drills, punches, hammers, pickaxes, connections and laboratory and personal material.
Room II contains elements to prepare ores an scale models of washing places, planimetry and the reproduction of a forge. Extensive photographic information completes the objets displayed in the room.
Room III shows with photographs the industry of the transformation of industrial ores: foundries of lead and sulphur from Murcia. This room has also got materials from the machinery factory "Maquinista de Levante".
Room IV is dedicated to the miners. The faces of workers, engineers and managers remind us the men who managed to make mining a leading industry in the Region of Murcia.
Room V contains a sample of minerals extracted from the beds in Murcia. Two computers with specific programmes about minerals and a binocular magnifying glass to watch micro-mounts extend the didactic content of this room.