In 1892, Arístides de Artiñano from Barcelona registered two iron ore mines with the names "Niño Jesús" and "Victoria Esperanza", after having carried out some promising prospecting. It was already known that iron had been mined in this area of Les Gavarres in the s. XVIII, and the growing Catalan industrial economy of the s. XIX needed this raw material to develop, along with coal.
The mine is made up of a set of galleries that drill the northern side of the Bacs mountain at different levels, with 23 open galleries located.
The mine was closed in 1918, after only 26 years of operation, due to the low profitability of the iron ores and the cost of transport to the foundries.
The charger is the first item you will find, on the right hand side of the path, following some stairs with a wooden railing. It is the most characteristic and significant of the mining complex and is located at the confluence between the Mavalls stream and the Deveses stream.
Following the path again, you will reach the main mines that are at the foot of the route. Nowadays the galleries have become an important resting and breeding habitat for bats, animals often despised for their appearance and associated mythology, but of great natural importance for their predatory ability on insects and as bioindicators of the quality environmental and the impact of climate change on an ecosystem.
It is advised not to enter the galleries, for safety reasons and to preserve the tranquility of the fauna that lives there.