Drive northeast from the Atlantic surf at Nouakchott, and after a few hours the road gives up and the Sahara takes over. There are no towns out here, no fields, barely a tree. And then, where the satellite map shows only tan emptiness, a city of machines appears: haul trucks the size of houses, a crusher running day and night, and a pit gouged so deep into the desert that it has its own weather of dust. This is Tasiast, where Mauritania turns barren rock into one of the largest gold operations on the African continent.
There is no glittering vein at Tasiast, no nugget waiting in a streambed. The gold here is invisible, locked in microscopic flecks through ordinary-looking stone. To free it, the mine works at industrial scale: rock is blasted from an open pit, crushed, ground to powder, and bathed in cyanide solution that dissolves the metal grain by grain. From that chemistry comes a startling yield. In 2022 the mine produced 538,591 ounces of gold, roughly 15.2 tonnes, more than double what it had managed just a year before. To picture it: a year's output, all the trucks and crushers and acres of pit, distilled down to a quantity of metal you could fit in the bed of a single pickup.
Tasiast began modestly. A Canadian company, Red Back Mining, started digging in 2007. Three years later, in August 2010, the much larger Kinross Gold bought the operation in a deal worth 7.1 billion dollars, a staggering wager on a remote patch of Saharan coast 300 kilometres north of the capital. Kinross has since poured close to a billion dollars more into an expansion meant to make Tasiast one of the biggest gold mines in Africa, and even built a solar plant on site to supply a fifth of the mine's electricity. Running a mine where summer heat is punishing and water is scarce is its own kind of engineering, every drop and kilowatt hauled or generated against the indifference of the desert.
By 2016 more than 4,000 people worked at Tasiast for Kinross or its contractors, an extraordinary number in a region where towns are tiny and jobs scarce. As part of a national push the Mauritanians call Mauritanization, the company agreed in 2016 to put more locals into its workforce and to transfer skills rather than simply extract ore. Brahim Ould M'Bareck Ould Mohamed El Moctar, a former government minister and onetime head of the state mining giant SNIM, rose to a vice presidency at Kinross. The arrangement has not been free of friction. In 2015 the company was accused in the Mauritanian press of favoring contractors tied to the government, a charge Kinross denied.
Gold is Mauritania's quiet fortune, and Tasiast is its single biggest source. The deposit sits in the Inchiri and Dakhlet Nouadhibou regions, an area whose rocks hide not just gold but copper, iron, and a dozen other metals. For a nation of fewer than five million people spread across a country mostly desert, the mine is both an economic lifeline and a reminder of how much of modern wealth is dug from places almost no one will ever see. A mill fire briefly halted operations in 2021, a vulnerability of running a machine-city in the middle of nowhere. The pit keeps deepening, and the desert, patient as ever, waits at its edge.
Tasiast lies at 20.58 degrees north, 15.50 degrees west, in the Saharan interior of western Mauritania, about 250 km southwest of Nouadhibou and 300 km north of Nouakchott. From altitude the open pit and processing plant stand out sharply as a geometric scar of grey rock and tailings ponds against featureless tan desert. Nearest major airports are Nouakchott (GQNN) to the south and Nouadhibou (GQPP) to the northwest. Visibility is usually excellent, though blowing dust and harmattan haze can reduce it sharply; best viewed midmorning when low sun throws the pit terraces into relief.