Project
Alberto Peña Kay
Protecting the Santurban páramo from mining's damage
In the Andean region, high-mountain ecosystems known as páramos capture water from the fog and supply it to the lowlands. One such ecosystem is the Santurbán páramo, which provides fresh water to more than two million people in Colombia.
Santurbán, like the other páramos on the continent, also captures large amounts of carbon, making it a key ally in mitigating the climate crisis. It is also a refuge for hundreds of endangered species, including the iconic spectacled bear.
The land in and around the páramo contains gold and other minerals. This has put Santurbán in the spotlight of the multinational mining industry, which for decades has sought to establish large-scale projects in the ecosystem that threaten to degrade it.
The Committee for the Defense of Water and the Santurbán Páramo—a coalition of environmental advocates—has thwarted these ongoing attempts, with support from AIDA and other civil society organizations.
Background
The Santurbán páramo is located in the heart of the Eastern Cordillera of the Colombian Andes, in the departments of Santander and Norte de Santander, at an elevation ranging from 2,200 to 4,290 meters above sea level.
It covers an area of 129,743 hectares and is home to 57 lakes. It serves as a habitat for 457 plant species and 293 species of vertebrate fauna.
There are mineral deposits in Santurbán, primarily gold, but also silver and copper. This explains the region’s mining tradition, particularly in the part of the páramo located in Santander, in the province of Soto Norte. The communities in the area have built their culture and identity around gold mining, which is mainly artisanal and small-scale.
But since the 1990s, the gold deposits in the páramo have also attracted foreign mining conglomerates seeking to develop large-scale projects. This has raised concerns among the population that relies on the Santurbán water sources, who have mobilized in defense of water, their land, and life.
Although national and international regulations prohibit mining in páramos, the Colombian government has granted mining concessions to transnational corporations in Santurbán.
Photo: Keishpixl / Pixabay.
The long struggle to protect the páramo
One of the companies that sought to develop large-scale mining in Santurbán is Eco Oro Minerals Corp.—formerly Greystar Resources—a Canadian company that intended to establish the Angostura open-pit mine there to extract gold and silver. Between 1994 and 1995, the company acquired its mining titles and conducted exploration. And in 2010, it applied for a mining permit.
That was the year AIDA became involved in defending the ecosystem, supporting the Committee for the Defense of Water and the Santurbán Páramo. Our legal work helped convince the Colombian government to deny the mine an environmental permit in May 2011.
In January 2013, the government designated a portion of the páramo (11,700 hectares) as a Regional Natural Park. That year—together with the committee and partner organizations—we carried out a campaign and advocacy efforts to urge the government to recognize the entire Santurbán area as a páramo ecosystem through a delimitation based on scientific criteria. In December 2014, the Ministry of the Environment established a delimitation that protected 76% of the páramo (98,954 hectares).
Furthermore, as a result of a litigation supported by AIDA, in February 2016, Colombia’s highest court reaffirmed that mining in páramos is prohibited.
That same year, in December, the International Finance Corporation (IFC), the World Bank Group’s private sector arm, decided to divest from Eco Oro Minerals. This achievement was the result of a process that began in 2012, when the committee—advised and supported by AIDA and international partner organizations—filed a complaint before an independent accountability mechanism, which concluded that the IFC’s investment in the Angostura project failed to take into account the project’s social and environmental impacts, thereby contradicting the financial institution’s internal policies.
Also in 2016, Eco Oro Minerals filed an arbitration claim against the Colombian government with the International Centre for Settlement of Investment Disputes (ICSID), arguing that it had been adversely affected by government decisions aimed at protecting the country’s páramos, including the delimitation of Santurbán.
In 2017, the Constitutional Court invalidated the delimitation because the affected communities were not consulted. The high court ordered that a participatory delimitation be carried out.
And that year, a new threat to Santurbán emerged when the Canadian multinational Aris Mining applied for an environmental permit for Soto Norte, a gold mining project located near the páramo. Following citizen protests and technical objections, in October 2020, the National Environmental Licensing Authority shelved the project.
Photo: Aztlec.
Current situation
In March 2025, the Colombian government designated the western flank of the Santurbán massif as a temporary renewable natural resource reserve area, delimiting and protecting an area of 75,344.65 hectares. This resulted in a two-year suspension of the Soto Norte project. However, Aris Mining's contract to formalize Calimineros' small-scale mining activities through the purchase and processing of mineralized material remains in effect.
In addition, the Canadian mining company continues to move the project forward. In September 2025, it released its prefeasibility study, revising the mine’s original design.
Meanwhile, members of the Committee for the Defense of Water and the Santurbán Páramo face threats and stigmatization because of their work. In March 2025, UN Special Rapporteurs and the Working Group on Business and Human Rights denounced these incidents in communications sent to the governments of Colombia, Canada, and the United Arab Emirates, as well as to the companies Aris Mining and MDC Industry Holding Company LLC, the former co-owner of the Soto Norte project.
Regarding the arbitration claim filed by Eco Oro Minerals, in July 2024, ICSID ruled in favor of the Colombian government and rejected the Canadian company’s claim for USD 1.1 billion in compensation.
Concerning the delimitation of Santurbán, in July 2026, the Ministry of the Environment issued a resolution introducing the concept of "progressive delimitation." On that basis, the government proposes to progressively demarcate the páramo, covering 29,199 hectares across 19 municipalities—those where the participatory agreements required by the Constitutional Court in its 2017 ruling have already been finalized. It also proposes two measures on the creation and expansion of reserves to restrict mining in the ecosystem.
Learn more about the impacts of mining on the páramos of Latin America (in Spanish).
Partners:
Related projects
Statement on the murders of environmental defenders in Honduras and Brazil
Threats to, as well as the intimidation, harassment and murder of environmental defenders must stop now! Yesterday we learned of the senseless murder of Lesbia Yaneth Urquía Urquía, a defender of the environment and indigenous rights who fought against the construction of the Aurora I dam in La Paz, Honduras. In a similar tragedy in Brazil, last month authorities found the lifeless body of Nilce de Souza Magalhães, a recognized leader of the Movement of People Affected by Dams (MAB), who worked for the rights of Amazon communities affected by large dams, predatory fishing practices and other threats. Both instances reinforce a tragic trend in Latin America, a region home to seven of the ten most dangerous countries in the world for environmental defenders. According to Global Witness, 185 environmental activists were assassinated worldwide in 2015; two thirds of them were from Latin America. Now, more than ever, it’s time to call for accountability. Lesbia Yaneth worked in alliance with the Council of Popular and Indigenous Organizations of Honduras (COPINH), and her death comes just four months and four days after the assassination of the Council’s leader, Berta Cáceres. Nilce disappeared in January, her body finally discovered on June 21 in the lake formed by the Jirau dam, against which she had fought in defense of the rights of her community. Regarding these unfortunate deaths, María José Veramendi Villa, senior attorney of AIDA’s Human Rights and Environment Program, said: “The increasing rate of murder of environmental defenders in Latin America is alarming. States must guarantee a favorable environment in which people can safely perform their work to protect the natural world. States must also investigate and appropriately punish those responsible for these violent acts. The murders of those who bravely defend the environment must not go unpunished. Threats to, as well as the intimidation, harassment and murder of environmental defenders must stop now!”
Read more
Activist Deaths Demand Accountability
Last year 185 environmental activists were murdered world-wide, two-thirds from Latin America, according to Global Witness. Of the ten most dangerous countries in the world for environmental defenders, seven are in Latin America. The brave activists we lost were killed for resisting mines, dams, and other destructive industrial projects. Now, more than ever, we must demand accountability. For the loss to the environment, the loss of indigenous cultures, the loss of human rights. That just got harder. On May 23 the Inter-American Commission on Human Rights announced a severe financial crisis leading to “suspension of [scheduled] hearings and imminent layoff of nearly half of its staff.” While the Commission has long been short on funds, this is the worst financial crisis it has ever seen. The Commission depends on funding from the Organization of American States (OAS), governments in the Americas and Europe, organizations, and foundations. Nearly all governments have decreased or failed to honor their financial commitments. The financial crisis demonstrates that our work, and the work of colleagues, communities, and movements, is having an impact. The Commission has produced important decisions in cases involving indigenous and community rights, land and environmental protection, and destructive development projects. For a few years countries have complained that the Commission is going beyond its mandate in cases involving development projects. But of course, when development projects violate human rights, they clearly fall within the purview of the Inter-American Human Rights System. The Belo Monte Dam case provides clear evidence that this manufactured crisis is a result of our effectiveness. In 2011 the Commission granted the precautionary measures our colleagues and we requested on behalf of affected indigenous communities. Brazil reacted by immediately withdrawing its ambassador to the OAS and by withholding funding for the rest of the year. A new ambassador did not return until 2015 and Brazil’s payments haven’t normalized since. In addition, after the precautionary measures were issued Brazil started an aggressive process to “reform” the Commission that ended by weakening its power. At AIDA we have analyzed how the crisis affects our cases before the Commission; how it affects future cases that need international attention; and how it affects human rights protection in the Americas. Current cases will likely be delayed. Our case on toxic poisoning in La Oroya, Peru is already seriously delayed. The Commission has promised to release a report on the merits so the case can be taken to the next level, the Inter-American Court of Human Rights. We have been told the Commission will approve the report, which has been completed, this year—despite losing 40% of its staff. This remains to be seen. Of course, we have contacted the Commission and stressed the importance of advancing the case. Informally, some judges from the Inter-American Court have indicated their eagerness to receive the case. Processing the Belo Monte case has only just started, after pending four years at the Commission. Strong political pressure from Brazil will likely delay it further. But political pressure on Brazil and the Commission can help the case move faster. As Belo Monte is linked to the biggest corruption scandal in Brazil, maybe the Commission will understand how relevant it is to advance the case. We will continue advocating for priority processing. New cases require further evaluation. We plan to bring at least one new case to the Commission soon, because unless we meet a deadline in a few weeks, the statute of limitations will prevent its consideration. All domestic remedies have been pursued; the Commission represents the last chance for justice. Despite the uncertainties of the current situation, it is important to preserve our clients’ rights in case the Commission’s funding is brought back to an adequate level. In other cases, we are looking for different ways to achieve justice. For example, we are exploring more than ever the use of national courts and national authorities. In addition, we are looking for new ways to engage financial institutions to prevent funding of projects that harm the environment and human rights. We are working with other organizations to develop response strategies. One of our attorneys, Rodrigo Sales, a Brazilian lawyer, recently represented AIDA at the General Assembly of the OAS. He advocated for human rights solutions in the region, among other issues. We consider collaboration and cooperation among the human rights and environmental communities to be essential. We need to stand together, showing governments and the public that human rights and the Commission are of vital importance. The financial crisis of the Commission—an international entity for hearing and resolving hemispheric human rights concerns—is an urgent issue that requires common understanding, thinking, strategizing, and acting. AIDA is working to make this happen.
Read more
The love of nature, a lesson from father to daughter
By Aida Navarro, AIDA Communications and Human Resources Advisor On Father’s Day, I’d like to share the vision that my daughter Constanza has of her father. At AIDA we celebrate all the fathers who instill in their children a profound love for nature. We share your desire for all children to inherit a healthy planet on which environmental justice thrives. We also celebrate all the lawyers, like those on our team, who fight daily to defend the environment and human rights. We firmly believe that the love of our natural world begins in the cradle. I was barely a year old when my dad took me to one of the most magical places on Earth: Yellowstone National Park, the world’s first protected area. Nature and all the special creatures that live in it have enveloped my childhood ever since. When my teachers at school asked me what my father did for a living, I proudly told him that he is a defender of the planet. In his office, the walls are lined with photos of animals. My favorite is the white shark, which he took in a place called Guadalupe Island, where he’ll take me when I’m older. Every night I choose a book about sharks to read at bedtime. I already know the names of most species of sharks and I know what I must do to protect them. My dad Fernando says that being an environmental attorney is hard sometimes because he has to fight against people that do things to destroy the planet. Attorneys, he said, have to study a lot, know a lot of laws and use their brains to find ways to avoid damage to people and the environment. My mom knows a lot of lawyers who do the same work as my dad. She works with them in an organization that shares her name: AIDA. She helps them so that other people know what the organization does and can help them to defend nature. A Passing Dream I’m not sure if my memories of Yellowstone are real or if they’re all mixed up with photographs and the stories I’ve heard. I remember seeing a huge herd of buffalo out of the car window. They were so close I could smell them. I remember how patient my dad was when we was waiting to take a photo of a group of wolves that looked just like the tattoo on his arm. I can almost still smell the forest and hear the funny sounds that the squirrels make. I remember how amazing it was to discover, beneath the bark of trees, entire worlds so hidden from the gaze of us giants. Among so many other things, on that trip I learned to climb trees and throw stones, important skills for a young girl like me. I remember a mama bear with her two cubs crossing the road right in front of us. All of us in cars smiled an unforgettable smile and waited patiently for the animals to pass. My dad waited for me to grow a little bigger before he took me to meet the giants he had told me so much about: the grey whales. We drove for many hours. On the way, we stopped to walk among giant cactuses that grew up among the rocks. It was very hot and my dad told me about all the animals that lived in the desert. When we finally arrived to where we were going, we got on a small boat. We shouted with joy and excitement when a whale swam up and played with us as if we were a little toy boat in a bathtub. My dad held me tight in his arms as I stretched out to touch the whale. Her skin felt thick and airy, like those inflatable castles I love to jump in. I didn’t like it when the whale blew into my face; it smelled like fish! Living with Nature Even though he grew up in Mexico City, one of the biggest cities in the world, my parents chose to live in a much quieter place, on the Baja California peninsula. The view of the ocean delights every sunrise. We breathe clean air. In the mornings, my dad takes me to school down a long dirt road. On the way there, I like to greet a honey-colored horse that rests beneath a tree. At school, we have chickens and guinea pigs. We make compost, plant vegetables, run between trees and listen to birdsongs. It’s so much fun. When my dad travels, I miss him a lot, but I’m so happy that he’s out there saving the whales, dolphins and turtles. “Save so many dolphins,” I tell him when we talk on the phone. I imagine him as a super hero sailing in distant seas to rescue animals trapped in nets that fishermen forgot, or animals that would die from eating plastic they confused with food. I don’t want them to kill the animals. I think that when I’m older, I’ll be a veterinarian, or maybe a lawyer like my dad. That way I can defend the bears, sharks, trees and rivers; and also the children who have lost their homes to floods, or don’t have clean water to drink. Now that I’m almost five years old, I want my cake to have animals in danger of extinction on it... or maybe reptiles! I have so many unforgettable memories of Yellowstone, and even more photos, but the best memory, the one that still floods his face with happiness, is that on this trip I learned to say, “dad.”
Read more