Rainbow Mountain Peru

Rainbow Mountain in Peru 

When you first see a picture of Vinicunca, aka Rainbow Mountain in Peru, it might seem like it was photoshopped. But those vivid stripes of turquoise, lavender, red-violet and gold are real. You probably wonder how this marvel of nature developed. To understand this strange phenomenon, we need to understand a bit about the interaction of geology with meteorology. Read below as Explorandes explains how Rainbow Mountain Peru developed those amazing colors. We will also inform you as to the problems the region is facing and present an alternative: Palcoyo Mountain. 

Rainbow Mountain Elevation, Weathering, and Climate 

Rainbow Mountain sits at an elevation of 6,384 meters above sea level at its highest point. This area used to be covered with snow and ice. Due to the barren environment and loss of glacial snow from climate change, the striations of the mountain became visible over the past decade.  

Rainbow Mountain Peru was not a tourist destination at all until 2015. At that time, enough of the glacier had melted due to global warming to reveal those brilliant colors. So, sadly, the existence of Rainbow Mountain Peru is due to the serious ecological problems we are currently facing.  

Distance of Rainbow Mountain from Cusco 

Rainbow Mountain Peru is located 147 km from Cusco (91 miles). The first part of the trip is on a paved road for about two hours, ending up in the village of Cusipata. The remainder of the route, around one hour, is on a dirt road. The total travel time to get to the area where the hike begins is around three hours. The hike itself is around 4.5 miles roundtrip, and dramatically increases in elevation quite quickly. Altitude sickness can be a cause for concern. 

Red Valley 

Located behind Rainbow Mountain, the Red Valley presents a striking brilliant red landscape of hills, valleys, and canyons. It is located in the districts of Pitumarca and Cusipata, about three hours from Cusco. The striking red coloration is caused by iron oxide in the rocks.  

What makes Rainbow Mountain so Colorful? 

There are several reasons why Rainbow Mountain is striped (striated) with colors ranging from turquoise to lavender to maroon to gold. The answer lies in understanding how weathering over thousands of years affects minerals. The effects of climate change, exposing formerly snow-covered areas, plays a role in the visibility of the colors.  

The subduction of the Nazca plate underneath the South American plate initiated the uplift of the Andes Mountain range. This produced significant volcanism and the introduction of rare and varied minerals to the Andes Mountains. Different layers of sediment rocks, like sandstone, halite, gravel, and clay were compacted one above the other to form different layers. Minerals like iron, sulfur, copper, magnesium, and silicon take on varied coloration from millennia of weathering. The layers change color based on the effects of snow, wind, and water over time.  

As time passes, movement and collision of tectonic plates gave rise to new mountains and new colors. For example, the red shades you see often indicate the presence of iron oxide (rust). Iron sulphide can give sediment a bright yellow hue. Magnesium present in phyllites can produce various shades of green.  

Why We Advise Against Promoting Rainbow Mountain in Cusco 

As a responsible tour company, we feel obligated to make potential visitors aware of concerns over tourism to Rainbow Mountain.  

• Rainbow Mountain has become so popular that one must wind their way among crowds of tourists to access it. Currently 1500 people per day are visiting this site. Experiencing crowds of this size can impact the quality of your experience.  
• Getting there is difficult. The amount of travel time vs. time spent at the site is not great enough to warrant the visit. This is according to folks who have visited Rainbow Mountain. 
• There is approximately 40% less oxygen at this altitude than at sea level. This makes altitude sickness with symptoms such as headache, nausea, and dizziness a possible issue.  
• This remote area lacks infrastructure; there is little to do besides visiting Rainbow Mountain itself. Lodging and restaurants are very basic.  
• Local communities have disputed among themselves as they struggle to handle the sudden influx of tourism to the area. This can result in road closures and may even impact tourist safety in the area.  

Palcoyo mountain an Alternative to Rainbow Mountain 

There is another site that offers similar marvels of coloration and is easier to access. This is Palcoyo Mountain. The hike to Rainbow Mountain is approximately 4.5 miles roundtrip. The hike to Palcoyo is approximately 2.5 miles roundtrip, and the trail is much easier and mostly flat. However, it is important to remember that this is still a high-altitude hike. Acclimatization of at least two to several days is highly recommended before trekking to either area.  

The greater altitude gain for the Rainbow Mountain Peru hike increases the chances of experiencing altitude sickness, with accompanying symptoms.  

Furthermore, you are unlikely to see many fellow visitors on a visit to Palcoyo. The terrain is much easier, and the beauty of this area is similar in most respects to that of Rainbow Mountain.  

The hike to Palcoyo includes many viewpoints with areas of rainbow-like and brilliant red coloration visible throughout the region. As the region has not been overrun with tourists, a more tranquil visit is likely. Too, the drive there (approximately three hours) vs. the hike to the area are more reasonable. In fact, the walk to Palcoyo might be considered easy if it were at sea level. The climb is steady but gradual, so it is less of an ordeal for hikers. This has been reported by people who have visited both Rainbow Mountain and Palcoyo.  

Families with children may find Palcoyo a better option for its relative ease of access. Palcoyo still provides glorious views over peaks and valleys shining with gorgeous color. We recommend Palcoyo as an alternative hike to Rainbow Mountain Peru. We’ll provide further information in a separate blog.