Hydrogen, often seen as the energy carrier of the future due to its clean combustion, faces challenges in large-scale production. A recent study highlights the potential of natural hydrogen reserves hidden in mountain ranges, particularly through the geological process of serpentinization. This natural hydrogen, distinct from grey and green hydrogen, could offer a sustainable and cost-effective energy source. Mountain ranges, with their geological dynamics, provide ideal conditions for the formation of natural hydrogen. Exploration projects in regions like the Pyrenees and the Alps are underway to assess the reserves and develop extraction techniques. Despite obstacles like deep deposits and complex geology, the commercialization of natural hydrogen holds promise for a cleaner and abundant energy future, driving ongoing research and development efforts.