🖼️ Museo de Arqueología de Alta Montaña (MAAM)

The Museo de Arqueología de Alta Montaña (Museum of High Altitude Archaeology, universally abbreviated MAAM) occupies a handsome 19th-century building on the western side of Plaza 9 de Julio, the colonial heart of Salta. It was created by the provincial government and inaugurated in 2004 for a single, extraordinary purpose: to preserve and exhibit the Children of Llullaillaco, three Inca children discovered in 1999 frozen near the 6,739-metre summit of the Llullaillaco volcano on the Argentine–Chilean border. They are among the best-preserved human remains ever found anywhere in the world.

The children — a boy of about seven, a younger girl, and the teenage Doncella (Maiden) of around fifteen — were sacrificed roughly 500 years ago in a capacocha ceremony, the Inca rite in which selected children were offered to the gods at sacred high-mountain shrines. They were not killed violently: evidence suggests they were fattened, given chicha (maize beer) and coca leaves, and left to die of cold and altitude in a state of sedation. The extreme cold and thin air of the summit froze and desiccated them so completely that their skin, internal organs, and even the food in their stomachs survived intact. Displaying them at all required the museum to invent a bespoke refrigerated, low-oxygen capsule that mimics the volcano's conditions — a technical challenge that meant the mummies were not fully exhibited until 2007.

The MAAM is far more than the mummies, though they are its emotional centre. The galleries trace the Inca presence in the Andean northwest, the meaning of mountain worship, and the spectacular grave goods buried alongside the children: miniature gold, silver, and Spondylus-shell figurines, finely woven textiles, feather headdresses, sandals, and pottery. Later donations — the Teruel collection and the Reina del Cerro (Queen of the Hill) mummy — broadened its holdings. The museum sits naturally on a circuit with the province's other Andean draws, from the painted gorges of the Quebrada de Humahuaca to the high-altitude railway of the Tren a las Nubes, and it gives essential cultural context for both.

The Children of Llullaillaco are the unmissable core — three Inca children recovered from a 6,739-metre summit, with one rotated into the climate-controlled display capsule at a time. Beyond the mummies, the grave-goods collection is extraordinary: miniature human and llama figurines of gold, silver, and red Spondylus shell, dressed in tiny woven garments and feather headdresses, were buried as companions and offerings. The textiles — unku tunics, aksu dresses, and finely braided slings — show the technical mastery of Inca weaving. The galleries also display pottery, sandals, coca bags, and ceremonial objects that map daily and sacred life in the Andean highlands. Later additions include the Reina del Cerro mummy, looted from the Chuscha hill in the 1920s and eventually recovered for the museum, and the Teruel collection of objects and skeletal remains from the San Carlos department. Together they make the MAAM the definitive collection of Andean high-mountain archaeology.

The museum is small enough that guided interpretation makes an enormous difference. Spanish-language guided visits are typically offered free at scheduled times through the day — ask at the ticket desk for the next departure. An audio guide (a small extra fee) is available in several languages and is the easiest way for non-Spanish speakers to get full context. For deeper or English-language guiding, the best option is to book a private guide through a Salta tour operator, who can combine the MAAM with a walking tour of Plaza 9 de Julio, the cathedral, and the historic centre. Group tours move briskly through the mummy room because it is kept silent and dim, then linger over the grave goods, where most of the explanation happens. If you want unhurried time alone with the Doncella, arrive at opening and let the first guided group pass through ahead of you.

The MAAM is generally open Tuesday to Sunday, roughly 11 AM to 7:30 PM, and closed on Mondays (hours shift slightly by season, so confirm on the day). Allow 90 minutes to 2 hours. Best season: the dry Andean winter from June to September is Salta's high season — clear skies, cool comfortable days, and the museum makes a perfect indoor anchor when you are acclimatising before heading to altitude. Mid-morning on a weekday is the quietest window; weekend afternoons and the January–February domestic-holiday peak bring the longest queues. The mummy gallery is kept dim and cool, so the experience is the same regardless of weather outside.

General admission is around AR$8,000–12,000 (roughly US$8–12) for adults, with discounts for students, seniors, and children, and reduced or free entry for residents of Salta Province (often on a designated free day — ask at the desk). Prices are adjusted frequently because of Argentine inflation, so treat these as approximate. An audio guide costs a few thousand pesos extra and is well worth it. Guided tours in Spanish are usually included with the ticket at set times; private English-language guiding booked through a Salta operator typically runs AR$20,000–40,000 (about US$20–40) on top of admission. Bring cash in pesos; card acceptance can be unreliable.

A good guide turns the MAAM from a striking but sombre display into one of the most illuminating hours in northern Argentina.

• The capacocha ceremony explained: Understanding why the children were sacrificed — as offerings to seal the bonds between the Inca state, the mountains, and the gods — transforms the experience from morbid curiosity into anthropology; a guide makes the ritual logic clear and humane
• Reading the grave goods: The miniature gold and Spondylus figurines, the textiles, and the feather work each carry symbolic meaning that is invisible without explanation; a guide decodes the iconography
• The science of preservation: Guides explain how altitude, cold, and low oxygen produced natural mummification, and why the display capsule had to be engineered to recreate summit conditions
• Ethical context: The exhibition is genuinely controversial — local indigenous groups object to displaying the children at all; a thoughtful guide presents this debate rather than glossing over it
• Connecting to the wider region: A guide ties the museum to the high-altitude shrines, the Tren a las Nubes route, and the Andean cultures still living in the quebradas, giving your whole Salta itinerary a backbone

Go early in your Salta trip. Seeing the children and understanding the capacocha ceremony first makes everything else in the northwest — the mountain shrines, the Quebrada de Humahuaca, the Puna — far more meaningful. Take the audio guide or a guide: the panels are good but the layered story of mountain worship rewards narration. Respect the room with the mummy — it is silent, dim, and treated almost as a memorial; no flash, no photos, and many visitors find it genuinely moving. Combine with the plaza: the MAAM faces Salta's Plaza 9 de Julio, ringed by cafés under colonial arcades, so pair your visit with lunch and a look at the cathedral. Check which child is showing if you are a returning visitor — the rotation means you may see a different mummy than last time.