Spanish Conquest of the Inca Empire: How the Incas Fell and Resisted
In November 1532, Francisco Pizarro entered the Andean city of Cajamarca with a force of fewer than two hundred Spaniards. Nearby was Atahualpa, the victorious ruler of an empire that stretched across thousands of kilometers of the Andes. He commanded resources and armies that seemed incomparably greater than anything the newcomers could bring against him.
Yet within a matter of hours, Atahualpa was a prisoner.
The capture of the Inca ruler at Cajamarca became one of the most famous episodes in the history of the Americas, and it is often presented as the moment when a tiny group of Spaniards defeated the mighty Inca Empire. But that simplified version leaves out much of the real story. The conquest was not a single battle, nor did the Inca world disappear immediately after Atahualpa was captured.
When Pizarro arrived, Tawantinsuyo—the Inca Empire—was already passing through an extraordinary political crisis. A devastating succession war had divided the ruling elite, epidemics had affected Andean populations, and many groups incorporated into the empire had their own political interests and rivalries. The Spaniards learned to exploit those divisions, while thousands of Indigenous allies became active participants in the wars that followed. The Library of Congress describes Pizarro’s force arriving in northern Peru with roughly 180 men and 30 horses and notes that complete Spanish control was not achieved until 1572.
The story therefore stretches far beyond Cajamarca. It leads from the civil war between Huáscar and Atahualpa, through the occupation of Cusco, the great rebellion of Manco Inca, the battles around Sacsayhuamán and Ollantaytambo, and finally into the forests and mountains of Vilcabamba, where an independent Inca state survived for decades.
This is the story of how the Inca Empire fell—but also of how the Incas continued to resist.
Table of Contents
- The Inca Empire on the Eve of the Spanish Arrival
- Pizarro's Journey Into the Inca World
- Cajamarca: The Day Everything Changed
- From Cajamarca to Cusco
- Manco Inca and the Great Inca Rebellion
- Vilcabamba and the Last Inca Resistance
- Why Did the Spanish Defeat the Inca Empire?
- The Conquest's Legacy in Modern Peru
- Timeline of the Spanish Conquest of the Inca Empire
- Frequently Asked Questions
- Day 5: Machu Picchu
- Machu Picchu Entry and Advance Booking
- Best Time to Do the Salkantay Trek
- Packing List for the Salkantay Trek
- Final Recommendation
The Inca Empire on the Eve of the Spanish Arrival
In the decades before the Spanish invasion, the Incas had created the largest empire in the pre-Columbian Americas. Known as Tawantinsuyu, the state was centered on Cusco and extended across a vast portion of the Andes, from present-day Ecuador through Peru and Bolivia and into parts of Chile and Argentina. By around 1530, the Metropolitan Museum of Art describes the empire as extending almost 3,000 miles along western South America.
Its power was based not only on military conquest, but also on administration, agriculture, redistribution, diplomacy, religious authority, and an extraordinary communications network. Cusco stood at the political and ceremonial center of this system, while regional centers connected distant populations with the imperial state.
One of Tawantinsuyu’s greatest achievements was the Qhapaq Ñan, the Andean road system. Rather than being a single road, it was a vast network linking cities, agricultural regions, administrative centers, ceremonial places, storage facilities, and military positions. UNESCO describes the complete network as extending for more than 30,000 kilometers, with four major routes originating from Cusco. Messengers, armies, officials, caravans, and entire groups of people moved through this system.
Yet the empire’s impressive size concealed an important weakness. Tawantinsuyu had expanded rapidly, bringing many different societies under Inca authority. Some were closely integrated into the imperial system; others had been conquered only recently. Political loyalty was therefore not uniform throughout the Andes.
That vulnerability became especially important after the death of the powerful ruler Huayna Capac.
The Death of Huayna Capac
Huayna Capac had spent much of his reign strengthening Inca power in the northern Andes. During the 1520s, however, an epidemic struck the region and the emperor died.
The disease is frequently identified as smallpox, which could have spread into the Andes ahead of the Spaniards themselves through existing networks of human contact. Cambridge research on colonial Ecuador emphasizes the major role of Old World epidemic diseases in weakening Indigenous societies. At the same time, historians have warned that identifying the exact disease responsible for Huayna Capac’s death is difficult because later chroniclers relied on retrospective testimony. It is therefore safer to describe it as an epidemic often associated with smallpox rather than treating the diagnosis as absolutely certain.
His death created a succession crisis at the worst possible moment.
Salkantay Trek Difficulty
The Salkantay Trek is generally considered moderate to challenging.
This level of difficulty does not come from only one factor. It comes from the combination of altitude, distance, trail conditions, and the physical demand of walking for several consecutive days. Even travelers with decent general fitness can find the trek hard if they are not prepared for hiking at elevation.
The most demanding aspect is often the altitude. Hiking in the Andes is very different from hiking at low elevation, because every climb feels heavier and recovery can be slower. A route that might seem manageable on paper can feel much harder when the air is thinner and the effort builds over multiple days.
The second major challenge is duration. This is not a short day hike. It is a trek that asks for consistent energy over several stages, and that means the body is under pressure not only during the hardest climb, but throughout the journey.
For that reason, the Salkantay Trek is best suited for travelers who enjoy active trips, are reasonably fit, and are willing to prepare for the altitude in advance.
Altitude and Acclimatization
Altitude is one of the most important things to take seriously before doing the Salkantay Trek.
Cusco itself is already at high elevation, and the trek moves into an even more demanding mountain environment. Because of that, acclimatization is not optional if you want a safer and more enjoyable experience. Travelers who arrive and try to rush into a high-altitude trek too quickly are much more likely to feel unwell or struggle physically on the trail.
This is why it is a good idea to spend time in Cusco or nearby areas before beginning the route. Giving your body time to adjust can make a very noticeable difference in how you feel during the trek. Even one extra day of adaptation can help, and a more gradual start is usually much better than trying to push through immediately after arrival.
In practical terms, the best approach is simple: take altitude seriously, hydrate well, avoid treating your first day in Cusco like a race, and allow your body time to adapt before you commit to several days of hiking.
Salkantay Trek Duration
A classic Salkantay experience is commonly completed in 5 days and 4 nights.
This is one of the most balanced formats for the trek because it allows enough time to enjoy the route without turning it into an unnecessarily rushed itinerary. A multi-day hike becomes much more enjoyable when it has enough space for recovery, for taking in the scenery, and for moving through the route with a more natural rhythm.
Five days gives the trek a stronger sense of progression. You feel the high mountain environment, the demanding crossing stage, the descent into greener terrain, and the final approach toward Machu Picchu as distinct parts of the experience rather than as compressed transitions.
For many travelers, that is exactly why the 5-day version stands out. It feels like a true journey, not just a shortened athletic challenge.
Classic 5-Day Salkantay Route
A classic 5-day Salkantay route begins on the Mollepata side and continues into the high mountain zone near Soraypampa, before crossing the Salkantay area and descending toward the Machu Picchu access zone.
This route is usually understood as a progression through several clearly different stages. There is an opening section in the high Andes, a more demanding mountain crossing, a descent into greener and lower terrain, a final approach toward Aguas Calientes, and the Machu Picchu visit on the last day.
This structure is one of the reasons the trek feels so complete. Each day has a different purpose, and the route gradually changes both physically and visually as you move forward.
Day 1: Arrival in the Salkantay Area
The first day usually begins with the overland journey from Cusco toward the Mollepata area and the start of the hike in the high Andean landscape.
This first stage introduces travelers to the environment of the trek. It is the day when the city disappears behind you and the mountain setting begins to define the journey. The air feels different, the scenery opens up, and the sense of being in a serious trekking route becomes much more real.
The first day often feels exciting rather than overwhelming. It is the beginning of the adventure and, for many hikers, one of the most scenic introductions to trekking in the Cusco region.
Day 2: High Mountain Section
The second day is usually the hardest part of the Salkantay Trek.
This is the stage where altitude and effort are felt most strongly, and it is the section that gives the route much of its reputation. For many travelers, this is the day that demands the most patience, steady pacing, and mental focus.
The mountain environment dominates the experience here. The scenery is powerful, but so is the physical effort required to move through it. This is why proper acclimatization matters so much. A traveler who respects the altitude usually experiences this day very differently from someone who underestimates it.
Even though this is often the hardest stage, it is also one of the most memorable. It is the part of the trek that makes people feel they have truly crossed the Andes rather than simply walked through them.
Day 3: Descent into Greener Landscapes
After the hardest mountain stage, the route begins to change.
This transition is one of the most rewarding parts of the trek because the scenery gradually becomes greener and feels less alpine. The contrast is one of the defining features of Salkantay. What begins as a high mountain journey starts to feel more varied and dynamic as the environment shifts around you.
For many travelers, this day is a reminder that the Salkantay Trek is not only about one difficult pass or one famous mountain. It is about movement through changing landscapes, and that variation is a major part of its appeal.
Day 4: Final Approach Toward Machu Picchu
By the fourth day, the route enters its final approach toward Machu Picchu.
This stage often feels different from the earlier days because the emotional focus begins to shift. The route is no longer only about effort and endurance. It becomes about anticipation. Travelers begin to feel that the final goal is close, and that creates a very different atmosphere on the trail.
The fourth day also acts as a bridge between the trekking experience and the visit to Machu Picchu itself. After several days of walking, the journey begins to narrow toward the final reward.
Day 5: Machu Picchu
The fifth day is dedicated to visiting Machu Picchu.
After days of trekking, this final stage is one of the most satisfying parts of the journey. However, it is important to understand that the visit to Machu Picchu now works through an official system of circuits and routes. Reaching the area after a trek does not mean unrestricted access to every part of the citadel.
This is why planning the Machu Picchu section in advance matters. The final day is not something to leave vague or improvisational. It should be organized as carefully as the trek itself.
Machu Picchu Entry and Advance Booking
One of the most important planning details for the Salkantay Trek is the final entry to Machu Picchu.
Machu Picchu currently operates under an official system of 3 circuits grouped into 10 routes. That means your experience inside the citadel depends on the ticket you book.
This matters a lot for travelers finishing the Salkantay Trek because it affects how you experience the final day. You should not assume that all tickets offer the same access or that everything can be decided at the last moment after arriving in Aguas Calientes.
Advance planning is the smartest option, especially if you want a specific route or simply want peace of mind after completing the trek.
Best Time to Do the Salkantay Trek
For most travelers, the best time to do the Salkantay Trek is during the dry season in the Cusco region, which generally runs from April to October.
This matters because the route crosses high mountain terrain where visibility, temperature, and trail conditions all influence the overall experience. Drier months usually offer a more stable trekking environment, which is especially important on a route where effort and scenery are both central to the appeal.
The rainy season, which generally runs from November to March, can still bring beautiful landscapes, but also more unpredictability. For a trek like Salkantay, where conditions matter a lot, most travelers prefer the drier months for a more comfortable and reliable experience.
Packing List for the Salkantay Trek
Packing correctly is essential for this trek.
Because the route combines altitude, changing temperatures, long walking days, and strong sun exposure, your clothing and equipment need to be practical rather than heavy or excessive.
A good packing list should include:
- layered clothing
- a warm mid-layer
- a waterproof jacket
- comfortable hiking shoes
- sunblock
- sunglasses
- a hat
- water or a hydration system
- personal essentials for multiple trekking days
The most important principle is flexibility. Mountain conditions can change quickly, and the best clothing system is one that lets you adapt rather than overheat or get too cold.
Final Recommendation
If you want a trekking adventure that feels scenic, demanding, and unforgettable, the Salkantay Trek to Machu Picchu is one of the best choices in Peru.
It offers dramatic Andean landscapes, a genuine multi-day hiking experience, and the reward of arriving at one of the most famous archaeological destinations in the world. The best way to enjoy it is to prepare properly: acclimatize before starting, choose the right season, pack smart, and organize your Machu Picchu entry in advance.
Done well, the Salkantay Trek can easily become one of the highlights of your entire trip to Peru.
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