[2] Officially named Puits Couriot ([pɥi kuʁjo]; English: Couriot Coalmine) / Parc Musée de la Mine ([paʁk myze də la min]; English: Mine Museum Park), it is set up in the buildings of the last coal pit of the city (closed in 1973).

Those exhibitions display a selection of objects from the museum's collections: The site is also part of a cultural program (performing arts, film screenings, festivals).

The rugged terrain of the area of the old locality known as the Clapier reflects the previous exploitation of the outcrops of these coal layers.

Around 1810, the activity seemed restricted when compared to Villars', east of Saint-Étienne (beyond the Furan) in Saint-Jean-Bonnefonds and especially the Gier Valley which then produces nearly half of the domestic coal production.

The CHSE was eventually absorbed in September 1845 by the great Compagnie Générale des Mines de la Loire.

It is the result of the two great neighboring companies running two coal veins situated on each sides of the Malacussy underground rift which cuts the plot in two.

In 1857, Clapier Station was inaugurated and the rail workaround of the western part of Saint-Étienne provided new uses for the coal extracted in Beaubrun.

On 3 June 1893, the small company was eventually absorbed by the Mines de la Loire, under the influence of Henry Couriot who probably saw development opportunities in the plot strategic position and stocks.

The pit was created to mine a vein of coal destined for coke named the "8th Grüner", the company hoped to reach a record depth of 1 km.

The drilling ended at 727.25 m in 1914 and the headframe was skidded over the pit, but the beginning of World War I stopped the building work.