The film visits people, elements, spaces, and memories of the Boquira Mining. The reckless extractive exploration dug tunnels in search of iron ore, between the late 1950s and 1992. This contradictory practice put the small town in the interior of Bahia on the Brazilian socio-economic map, with one of the largest lead reserves in the country, in the 1970s. One of the consequences is a gray mountain of tailings that contrasts with a history of joys, good memories, and accidents.