Ollantaytambo: Inca Planning, Royal Travel and the Sacred Valley

At the lower end of the Sacred Valley, where the Urubamba River begins to narrow on its way down towards Machu Picchu, the town of Ollantaytambo sits beneath a mountainside carved into steep stone terraces. Many visitors pass through it quickly, on their way to the train. That is a pity, because Ollantaytambo’s history is among the richest in the valley. It was a royal estate of the Inca ruler Pachacuti, it preserves the best surviving example of an Inca town plan, it holds one of the most ambitious unfinished temples in the Andes, and it was the scene of a rare Inca victory over the Spanish. On Day 8 of our South American Small Group History and Culture Tour, the group spends the afternoon exploring Ollantaytambo before taking the train to Machu Picchu the next morning.

A town that still reveals Inca planning

Ollantaytambo lies at 2,792 metres, about 70 kilometres by road north-west of Cusco, on the Patakancha River close to where it joins the Urubamba. In the mid-fifteenth century, according to the architect and archaeologist Jean-Pierre Protzen, whose study of the site remains the standard work, Pachacuti conquered the area, razed an earlier settlement and incorporated it into his personal estate. The Inca town that replaced it is still lived in today.

Its layout is unusually clear. The old town is laid out on a grid: four long streets crossed by seven shorter ones, forming rectangular blocks. Many blocks were divided into kanchas, walled compounds of single-room buildings arranged around a central courtyard, each entered through a single gateway from the street. Many of these compounds survive, still in use as homes, and water still runs in stone channels through some of the streets. Lonely Planet calls the town the best surviving example of Inca city planning, and walking its lanes, it is easy to see why.

Living in a monument brings pressures. Peru’s Ministry of Culture has taken action against illegal concrete construction in the Inca town, and the ministry reports that the archaeological site receives more than 2,000 visitors a day, rising to around 3,700 in the high season.

Fortress, terraces and the logic of defence

Above the town rises the hill the Spanish called the fortress, its slope carved into tall stone terraces. The name has stuck, and the site’s position at the mouth of the valley certainly gave it strategic value. But Protzen and other researchers have concluded that the complex at the top was primarily religious. Visitors climb about 200 steps beside the terraces to reach it.

At the summit stands one of the most remarkable unfinished works of Inca architecture: the Wall of the Six Monoliths. Six enormous polished slabs, the largest more than four metres tall, stand side by side, joined by narrow strips of stone set between them. Peru’s Ministry of Culture notes traces of carved motifs on them, including the stepped cross, or chakana. The structure is often called the Temple of the Sun, though that name is a later label. It was never finished.

How did the Incas move the stones at Ollantaytambo?

With extraordinary effort. The stone for the temple came from the quarries of Kachiqhata, on the far side of the Urubamba, about four kilometres away and 700 to 900 metres above the valley floor. Protzen found that the Inca quarrymen did not cut into solid rock; they went through two great rockfalls, selecting suitable blocks. The stones were then brought down ramps and a steep slide to the river and hauled across the valley and up to the temple. Dozens of abandoned blocks still lie along the route, known locally as the “tired stones”. Protzen estimated that around 1,800 people with ropes and levers could have moved the largest blocks.

Across the valley from the temple, on the slopes of the mountain called Pinkuylluna, stand Inca storehouses, or qollqas, where the Ministry of Culture reports remains of grasses and tubers have been found. At the foot of the temple hill, near the river, a carved stone fountain known as the Baño de la Ñusta, the Princess’s Bath, shows the same care for water seen throughout the town.

Royal delegations and movement through the valley

The town’s name records its function. A tambo was a waystation on the Inca road network, where travellers on state business could rest and be supplied. Ollantaytambo stands where the Sacred Valley narrows towards Machu Picchu and the forested lowlands beyond, and the tour’s own description of the site recalls its role as a resting place for royal travellers on long journeys. The Sacred Valley was dotted with royal estates belonging to Pachacuti and his successors, and the movement of rulers, their households and officials between them was part of how the Inca state worked.

That strategic position made Ollantaytambo the stage for one of the turning points of the Spanish conquest. In 1536 the Inca ruler Manco Inca rose against the Spanish and later withdrew to Ollantaytambo. In early 1537, Hernando Pizarro led around a hundred Spaniards, seventy of them mounted, with Indigenous allies, against him. Manco’s forces released water through prepared channels onto the plain below, flooding it until it reached the horses’ girths. Pizarro was forced to retreat, a rare Inca victory. Manco later withdrew further into the mountains, to Vitcos and then Vilcabamba, where an independent Inca state survived until 1572.

The town’s name is also linked by tradition to Ollantay, a Quechua drama about a general who falls in love with an Inca ruler’s daughter and makes his last stand here. The oldest surviving text dates from the eighteenth century, and whether the story is Inca or colonial in origin is still debated.

Ollantaytambo and the rail connection to Machu Picchu

Today Ollantaytambo is again a junction, this time for the railway. The narrow-gauge line from Cusco to Machu Picchu passes through the town, and its station is the main departure point for trains down the valley to Aguas Calientes, the town below Machu Picchu, a journey of around one and a half to two hours. The line follows the Urubamba as the valley narrows and the vegetation thickens towards the cloud forest.

The tour takes this train to Machu Picchu, where our article on Machu Picchu’s architecture picks up the story, and returns along the same line to Ollantaytambo the following day before continuing to Cusco. The railway itself is vulnerable to the mountains: in 2026 a derailment and landslides briefly disrupted services on the wider line, so arrangements are confirmed close to departure. Later in the journey, a very different railway, the line from Cusco across the Altiplano to Lake Titicaca, completes the picture of how rail links the Andes.

How demanding is a visit to Ollantaytambo?

Moderately. The climb to the temple is the main effort, about 200 stone steps beside the terraces, at an altitude of nearly 2,800 metres, which is lower than Cusco. Take it slowly, with water and sun protection. The old town is flat but cobbled, and the visit is unhurried.

What makes Ollantaytambo distinct from the rest of the Sacred Valley?

Its combination of an inhabited Inca town, an unfinished temple whose construction can still be read in the quarries and abandoned stones, and a documented role in the conquest. Other Sacred Valley sites show terraces or fine masonry; Ollantaytambo shows how an Inca royal estate was planned, built and defended, and how its people still live within it.

The day before, the group stops at Chinchero, known for its weaving traditions, on the way into the valley, and the morning of Day 8 is spent at the markets of Pisac. Our overview of the South America cultural tour route shows how the Sacred Valley fits into the wider journey. On the South American Small Group History and Culture Tour, a Program Leader and local guides bring these places to life for a small group of up to 16 travellers.