Atacama Desert Trivia
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58 free Atacama Desert trivia questions with answers — geography quiz, new questions added Sep 2026.
The Atacama Desert is a 1,600-kilometre strip of northern Chile where some weather stations have never recorded rain, and this Atacama Desert trivia quiz covers everything that makes it strange. The geography questions take in the two-sided rain shadow, the cold current offshore, the camanchaca fog that keeps cacti and penguins alive, the salt flats, geysers and volcanoes of the high Andes, and the soil so lifeless that NASA tests Mars instruments in it. The human story runs from the Chinchorro fishermen who mummified their dead two thousand years before the Egyptians, through the Atacameno fortress towns and the Spanish church of San Pedro, to the nitrate boom, the War of the Pacific, the ghost towns of Humberstone and Santa Laura, and the copper mines of Chuquicamata and Escondida. There are questions on the 33 miners rescued in 2010, the Dakar Rally, the giant hand in the sand and the world's biggest telescopes at Paranal, ALMA and Cerro Armazones. Difficulty runs from easy to expert. Every answer was verified against Wikipedia's articles on the desert and its places, people and events, and each question links to its source. Try our Deserts, Gobi Desert and Chile quizzes next.
30 of 58 questions with answers and explanations. Play the quiz
Q 01Radio dishes high in the Atacama were part of the planet-wide telescope network that in 2019 revealed the first image of what?
A black hole
A black hole showed up as a bright ring around a dark centre; eight radio telescopes from Spain to the South Pole worked as one Earth-sized telescope, and the recordings travelled on disks because there was too much data to send online.
Q 02Which cold flow of Pacific water, moving north along the coast, reinforces the desert's extreme dryness?
The Humboldt Current
The Humboldt Current chills the sea air, which then sits trapped under warmer air and cannot build rain clouds; the same cold upwelling feeds one of the world's richest fishing grounds beside one of its driest shores.
Q 03The Andes block moist air from the Amazon side, leaving the Atacama in what kind of sheltered zone?
A rain shadow
A rain shadow forms where mountains force moist air to climb, cool and shed its rain on the windward slope, leaving almost none for the far side; a lower range along the shore screens the desert from the ocean as well.
Q 04Which climate event, every few years, warms the cold sea off the Atacama coast and can bring rare rain to the desert?
El Niño
El Niño, 'the child', is said to have been named by fishermen for the Christ child, because the warm water tends to arrive around Christmas; it wrecks their catch, and rain can then soak ground that has been dry for years.
Q 05From 1903, a weather station on the Atacama coast recorded the longest rainless spell ever measured, lasting how long?
14 years
14 years: not a drop fell on the port between October 1903 and January 1918, the longest dry spell in the World Meteorological Organization's records; a child born there could turn 14 without seeing rain.
Q 06What do Chileans call the thick marine fog that keeps lichens and cacti alive on the Atacama coast?
Camanchaca
Camanchaca rolls in off the Pacific but never turns to rain: its droplets are too fine to fall, so cacti take their water straight from the mist.
Q 07Which naturalist, riding through northern Chile in 1835, called the Atacama "a barrier far worse than the most turbulent ocean"?
Charles Darwin
Charles Darwin found the port of Iquique so dry that its drinking water came by boat from forty miles up the coast, and he paid threepence for a wine-bottle of it.
Q 08In a 2003 study, the life-detection tests of which NASA mission, run on Mars in 1976, found nothing alive in Atacama soil?
Viking
Viking's tests came up empty in the desert's driest core, where the soil holds only traces of organic matter and almost no bacteria, and where chemistry rather than microbes breaks organic compounds down.
Q 09The Chinchorro people of the Atacama coast made the world's oldest artificial mummies, about 2,000 years before which civilisation did?
The Egyptians
The Egyptians usually kept elaborate mummification for the elite, but the Chinchorro preserved everyone, babies and even foetuses included, from about 5000 BC.
Q 10One theory says the Chinchorro began making mummies out of grief for infants killed by which poison, found naturally in their rivers?
Arsenic
Arsenic in the Camarones River runs at up to a hundred times the modern safety limit and causes miscarriages and early births, and the oldest mummy known is a child from that valley.
Q 11Laid out across a whole hillside, the Atacama Giant is the world's largest prehistoric human figure in which art form?
Geoglyph
Geoglyph: the giant is drawn on the ground itself, and the rays on its head may have lined up with the moon to help its makers predict the desert's rainy season.
Q 12The Pukará de Quitor, a 12th-century hilltop ruin near San Pedro de Atacama, was built as what?
A fortress
A fortress: it went up after the Tiwanaku state fell apart and the region's rival chiefdoms turned on one another, and its red stone walls still climb an 80-metre slope.
Q 13A mining boom that built whole towns in the Atacama collapsed after German chemists learned to make which product synthetically?
Fertiliser
Q 21Which US copper mine is one of the few open pits on Earth deeper than the Atacama's Chuquicamata?
Bingham Canyon, Utah
Bingham Canyon, Utah, is about 1.2 km deep; Chuquicamata's pit and waste heaps grew until dust and fumes forced its whole company town to move to Calama, leaving it abandoned by 2007.
Q 22As of 2024, which Chilean mine produced more copper than any other mine in the world?
Escondida
Escondida means "hidden": the Atacama ore lay under hundreds of metres of barren rock with no sign at the surface, so geologists found it only by drilling blind along a line of known copper finds.
Q 23How many days were the 33 miners of the San José mine trapped underground in 2010?
69
Fertiliser: the Haber-Bosch process, running at industrial scale by 1913, pulls nitrogen straight from the air, so the world stopped needing the mineral dug from the Atacama and its mining towns emptied.
Q 14Humberstone and Santa Laura, Atacama ghost towns made a World Heritage Site in 2005, were what kind of industrial site?
Saltpeter works
Saltpeter works: the derelict buildings were so fragile that UNESCO put them on its danger list the same year it inscribed them, and restoration only got them off it in 2019.
Q 15Which country lost its entire coastline, a strip of the Atacama, to Chile in the War of the Pacific?
Bolivia
Bolivia founded a navy anyway in 1963, long after its coast was gone: it trains on Lake Titicaca some 3,800 metres up in the Andes, and the country marks the loss every 23 March, the Day of the Sea.
Q 16The War of the Pacific is nicknamed the Ten Cents War after which charge that set it off?
An export tax
An export tax: in 1878 ten centavos were put on every quintal of mineral a Chilean company shipped, breaking a treaty that had promised no tax rises for 25 years.
Q 17Chilean troops set off the War of the Pacific in February 1879 by landing unopposed at which port?
Antofagasta
Antofagasta was taken on the very day a Chilean mining company's seized assets were due to be auctioned, and nobody fought back because most of the town's residents were Chilean miners.
Q 18Under the 1929 treaty that returned Tacna to Peru, which neighbouring port city did Chile keep?
Arica
Arica stayed Chilean without the vote its people were promised: the 1883 peace deal set a plebiscite for ten years on, the two sides never agreed its terms, and the towns were simply split.
Q 19The Battle of Iquique of 21 May 1879 is remembered in Chile with which annual public holiday?
Navy Day
Navy Day honours a ship Chile lost: the wooden Esmeralda was rammed and sunk by the Peruvian ironclad Huáscar, and Captain Arturo Prat died leaping onto the enemy's deck.
Q 20The Atacama miners shot by troops at Iquique in 1907 had struck partly over being paid in what?
Company tokens
Company tokens bought goods only at the mine owner's own shop, so the strikers demanded real money; the army answered with rifles and machine guns at the Santa María School, killing miners, wives and children.
69 days, and for the first 17 nobody above knew they were alive: the men stretched emergency food meant for about two days across more than two weeks.
Q 24How did Chile's 33 trapped miners first tell rescuers they were all alive?
A note on a drill bit
A note on a drill bit: when a probe broke through some 700 metres down, the men hammered on it and taped on a scrap reading "Estamos bien en el refugio los 33", all 33 of us are fine in the shelter.
Q 25Crews widening the Pan-American Highway through the Atacama exposed a graveyard of more than 40 fossil what?
Whales
Whales lay belly-up in four separate layers of rock, a sign that they died at sea and washed ashore in repeated mass strandings. Scientists think toxic algae poisoned them, as such blooms still kill sea mammals today.
Q 26Chile's first railway ran from Caldera in 1851 to which silver town, later known worldwide for the 2010 mine rescue?
Copiapó
Copiapó had grown rich on the Chañarcillo silver strike of 1832 and needed a way to the sea. The line's first locomotive, shipped from Philadelphia, was named after the town.
Q 27Which motorsport event began sending cars, bikes and trucks through the Atacama's dunes in 2009?
The Dakar Rally
The Dakar Rally left Africa after fears of attacks in Mauritania cancelled its 2008 race. Chile and Argentina offered to host, and the event stayed in South America for a decade.
Q 28At ALMA, 5,000 metres up in the Atacama, the trucks that move the radio dishes have seats shaped to fit what?
An oxygen tank
An oxygen tank helps the driver breathe the thin air while steering a 28-wheel truck loaded with a 115-tonne dish. ALMA needs the height: lower down, water vapour would soak up the faint signals it collects.
Q 29The Very Large Telescope's four giant telescopes carry Mapuche names for the Sun, the Moon, Venus and which constellation?
The Southern Cross
The Southern Cross is Melipal in the Mapuche language, beside Antu the Sun, Kueyen the Moon and Yepun, Venus. The four 8.2-metre telescopes can also pool their light to work as one far sharper instrument.
Q 30The Residencia, the staff hotel at Paranal Observatory, appeared in which James Bond film?
Quantum of Solace
Quantum of Solace made it the villain's desert hideout. The real building hides a tropical garden and a pool under its dome, so that astronomers coming off shift can breathe moist air.