Qualla: Morro Velho

Morro Velho: Introduction

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Augusto Riedel (1836-1877?), Public domain. Old Hill. That is what the name means - Morro Velho - and when the Saint John Del Rey Mining Company bought the property in 1834, the hill had already been producing gold for 109 years. Nobody in London that year could have guessed they were acquiring what would become the world's deepest mine. Nobody could have guessed it would still be running nearly two centuries later. The shaft now reaches more than three kilometers below the surface. Near the city of Nova Lima in Minas Gerais, Morro Velho keeps doing what it has done since 1725: pulling gold from the rock.

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Image: Augusto Riedel (1836-1877?) | Public domain

Morro Velho: The British Century

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Rcandre, CC BY-SA 4.0. The Saint John Del Rey Mining Company arrived with capital, steam engines, and expectations of empire. What they built around their pit was essentially a company town - a hydroelectric power plant, a state-of-the-art hospital for the era, a ten-kilometer tramway between Nova Lima...

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Image: Rcandre | CC BY-SA 4.0

Morro Velho: Deepest in the World

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Richard Francis Burton, Public domain. In 1915, the vertical shaft reached 5,824 feet. That made Morro Velho the deepest mine on Earth. The title was not a trophy the miners particularly celebrated - it meant longer rides to work, higher temperatures at the face, more complicated ventilation, more dangerous gases. But...

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Image: Richard Francis Burton | Public domain

Morro Velho: Change of Hands

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Marianne North, Public domain. The Saint John Del Rey company eventually sold to the Carvalhaes family, a transition that brought Brazilian ownership to the shaft after more than a century of British control. Then in 1975, Anglo American Corporation - the South African mining giant that was a precursor to toda...

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Image: Marianne North | Public domain

Morro Velho: What Comes Out of the Dark

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Leandro Neumann Ciuffo, CC BY 2.0. Gold is not the only thing this hill surrenders. The ore carries silver, arsenic, and other minerals that get separated in the processing stages. The arsenic is part of the legacy - for generations, the chemistry of extracting gold here produced contamination that lingered in soi...

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Image: Leandro Neumann Ciuffo | CC BY 2.0

Morro Velho: Oldest Working Mine on the Planet

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Revista Kosmos, Public domain. No mine on Earth has been in continuous operation longer than Morro Velho. Three hundred years of shifts, three hundred years of timbering and hoisting, three hundred years of headlamps moving into the dark and back out again. The Centro de Memória Morro Velho, an archive maintai...

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Image: Revista Kosmos | Public domain