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
Why these algae-eating fish may be corals’ greatest allies
Numerous studies have shown that herbivorous fish play a fundamental role in the health and survival of coral reefs by removing the algae that robs corals of the light and space they need to grow. But populations of these small algae-eating fish are diminishing rapidly due to human activity, which puts our reefs at greater risk. In the Mexican Caribbean, for example, 60 percent of the reefs are considered in poor or critical health. There exist a diverse array of herbivorous fish in our oceans; they’re grouped into various families that are, in turn, divided into groups according to their feeding habits and roles in controlling algae growth. Parrotfish are among the most important species, as their strong beaks allow them to clean large amounts of macroalgae. Herbivorous fish live in tropical and subtropical waters, including many Latin American and Caribbean nations—Belize, Colombia, Guatemala, and Mexico, to name a few. These fish contribute to the health of key coral ecosystems like the Mesoamerican Reef System. Despite serving as fish hatcheries and natural barriers against hurricanes, coral reefs are extremely fragile and vulnerable to the global climate crisis, which is driving ocean acidification, sea level rise, and increased algae growth. Experts say that, when faced with the reduced presence of herbivorous fish, reef systems lose their capacity to recover from extreme weather events like hurricanes, which are becoming more and more powerful. But the relationship between herbivorous fish and coral reefs is at increasing risk. Dwindling herbivorous fish populations are evident in the Caribbean, where fishing communities have begun to capture parrotfish after overfishing commercial species. The destruction of mangroves and marine grassland habitats put these fish at risk, since many species of parrotfish rely on them during their life cycle. Environmental degradation also increases sedimentation and the concentration of nutrients, causing an increase in macroalgae. Algae growth and an increase in coral diseases are the result of pollution caused by inadequate wastewater management and runoff from commercial agriculture. These problems require the implementation of urgent measures aimed at preserving herbivorous fish populations and, with them, maintaining the health and regenerative capacity of coral reefs. Such measures should include the establishment and adoption of clear fisheries management and conservation strategies to ensure the recuperation of herbivorous fish, particularly parrotfish, populations. Protected marine areas or regeneration zones that prohibit fishing in key areas should also be created. To adequately protect these fish, States must also: standardize the monitoring of fish populations in the region and implement alternative management strategies; promote comprehensive, regional management that enables local authorities to share experiences and establish common conservation tools; and create and implement regulations and laws to combat overfishing and bad tourism practices, and promote low-impact coastal development. In nature, symbiotic relationships, like that of herbivorous fish and corals, are abundant. We must learn to recognize and value them. Likewise, if we take care of nature, nature will take care of us.
Read more
Putting people’s fundamental rights at the core of solutions to the climate emergency
Announcing the First Ever Global Summit on Human Rights and Climate Change The People’s Summit on Climate, Rights and Human Survival – the first ever global summit on human rights and climate change – will be hosted by leading civil society groups and the UN Human Rights Office in New York on 18-19 September. The People’s Summit aims to galvanize the human rights community to urgently scale-up its efforts on climate justice, creating the most diverse movement ever assembled to tackle the climate crisis. The People’s Summit was announced in an open-letter below, which was published on the Thomson Reuters Foundation. The human rights and environmental communities must seek solutions together. It’s time for all of us to come forward as one to face the climate crisis. Our organisations seek a world where people thrive in a safe and healthy environment, where human rights come before corporate profits. To make it happen, we need to face the climate crisis united in the strongest and most diverse movement ever assembled. Only together can we make world leaders take this emergency seriously. Real solutions to the climate breakdown must place people and our fundamental rights at the core. This is an invitation to all those who value human dignity and wellbeing to fully throw their weight behind the call for global climate justice. And to those working to protect our planet to center their efforts in communities, particularly the people most impacted and least responsible for the climate crisis. The human rights community can bring key constituencies, power and skills to the fight for climate justice. The strength of a collective movement to overcome the climate crisis needs to match the gravity of the problem. Our organisations are coming together to make it happen, and we are urging the environmental and human rights communities to join us. To meet the challenge we, the people, must be more connected with each other and more committed to our planet than ever before. This is a matter of survival. Rampant carbon emissions have triggered unprecedented, dangerous and destabilising changes in our climate. Corporate and governmental neglect has already exposed millions to increasingly extreme weather disasters. We must reverse course now; the window of opportunity to act is closing. Make no mistake. The impacts of climate change already hinder our rights to health, food, water, housing, work and even life itself. These impacts are even more severe for people already in vulnerable situations in places impacted by severe weather, poverty or oppression. Our societies cannot keep on like this. People need access to justice, governments must work for the people and corporations need to be accountable for their actions. Now is the time to act. The signs of a shared will to do so are everywhere. Students are taking to the streets to call for a safe future. Indigenous Peoples are speaking up for the defense of land, water and communities’ rights. Workers are demanding safe and well-paying jobs in better, cleaner industries. Women’s rights activists are putting forward a wealth of feminist solutions. Religious leaders are calling on us to protect communities and nature. Scientists are gathering and sharing evidence to guide us out of the crisis. We know the challenge, and the answers are there. Solutions are available now, including renewable energy sources, respect for fundamental rights and traditional knowledge, and a true focus on the needs of the people over corporate greed. All of our organisations work on climate change already, some more explicitly than others. But now is the moment for us to connect the dots between our causes and join forces. A climate emergency is upon us, and we must act now. Environmental human rights defenders, Indigenous Peoples and local activists have long risked everything to fight environmental degradation. They are now joined in their struggle by growing mass movements such as the school climate strikes, Extinction Rebellion and campaigners calling for a Green New Deal. In this new era of climate activism, the human rights community cannot remain on the sidelines. It is more urgent than ever that we step up by working together to protect the communities and individuals on the frontlines of the climate struggle. That is why 150 non-governmental leaders and activists from different communities are coming together on September 18 and 19 for the ‘People’s Summit on Climate, Rights and Human Survival’. Our organisations will be there along with the United Nations Human Rights Office to support people demanding immediate and ambitious climate action from their governments to protect communities. We believe in unleashing the potential of a diverse movement to safeguard present and future generations. We are united to demand climate justice. Confirmed signers: Astrid Puentes, Co-Executive Director, Interamerican Association for Environmental Defense (AIDA) Bridget Burns, Director, Women’s Environment and Development Organization Carroll Muffett, President and CEO, Center for International Environmental Law Chris Grove, Executive Director, ESCR-Net Ellen Dorsey, Executive Director, Wallace Global Fund Gillian Caldwell, CEO, Global Witness Iago Hairon Souza, Coordinator, Engajamundo Jennifer Morgan, International Executive Director, Greenpeace International Kumi Naidoo, Secretary General, Amnesty International May Boeve, Executive Director, 350.org Phil Bloomer, Executive Director, Business & Human Rights Resource Centre Philip Alston, Center for Human Rights and Global Justice Chair, New York University Sharan Burrow, General Secretary, International Trade Union Confederation Sofia Monsalve, Secretary General, FIAN International Steve Trent, Executive Director, Environmental Justice Foundation Thalita Silva e Silva, Coordinator, Engajamundo
Read morePutting people’s fundamental rights at the core of solutions to the climate emergency
Announcing the First Ever Global Summit on Human Rights and Climate Change The People’s Summit on Climate, Rights and Human Survival – the first ever global summit on human rights and climate change – will be hosted by leading civil society groups and the UN Human Rights Office in New York on 18-19 September. The People’s Summit aims to galvanize the human rights community to urgently scale-up its efforts on climate justice, creating the most diverse movement ever assembled to tackle the climate crisis. The People’s Summit was announced in an open-letter below, which was published on the Thomson Reuters Foundation. The human rights and environmental communities must seek solutions together. It’s time for all of us to come forward as one to face the climate crisis. Our organisations seek a world where people thrive in a safe and healthy environment, where human rights come before corporate profits. To make it happen, we need to face the climate crisis united in the strongest and most diverse movement ever assembled. Only together can we make world leaders take this emergency seriously. Real solutions to the climate breakdown must place people and our fundamental rights at the core. This is an invitation to all those who value human dignity and wellbeing to fully throw their weight behind the call for global climate justice. And to those working to protect our planet to center their efforts in communities, particularly the people most impacted and least responsible for the climate crisis. The human rights community can bring key constituencies, power and skills to the fight for climate justice. The strength of a collective movement to overcome the climate crisis needs to match the gravity of the problem. Our organisations are coming together to make it happen, and we are urging the environmental and human rights communities to join us. To meet the challenge we, the people, must be more connected with each other and more committed to our planet than ever before. This is a matter of survival. Rampant carbon emissions have triggered unprecedented, dangerous and destabilising changes in our climate. Corporate and governmental neglect has already exposed millions to increasingly extreme weather disasters. We must reverse course now; the window of opportunity to act is closing. Make no mistake. The impacts of climate change already hinder our rights to health, food, water, housing, work and even life itself. These impacts are even more severe for people already in vulnerable situations in places impacted by severe weather, poverty or oppression. Our societies cannot keep on like this. People need access to justice, governments must work for the people and corporations need to be accountable for their actions. Now is the time to act. The signs of a shared will to do so are everywhere. Students are taking to the streets to call for a safe future. Indigenous Peoples are speaking up for the defense of land, water and communities’ rights. Workers are demanding safe and well-paying jobs in better, cleaner industries. Women’s rights activists are putting forward a wealth of feminist solutions. Religious leaders are calling on us to protect communities and nature. Scientists are gathering and sharing evidence to guide us out of the crisis. We know the challenge, and the answers are there. Solutions are available now, including renewable energy sources, respect for fundamental rights and traditional knowledge, and a true focus on the needs of the people over corporate greed. All of our organisations work on climate change already, some more explicitly than others. But now is the moment for us to connect the dots between our causes and join forces. A climate emergency is upon us, and we must act now. Environmental human rights defenders, Indigenous Peoples and local activists have long risked everything to fight environmental degradation. They are now joined in their struggle by growing mass movements such as the school climate strikes, Extinction Rebellion and campaigners calling for a Green New Deal. In this new era of climate activism, the human rights community cannot remain on the sidelines. It is more urgent than ever that we step up by working together to protect the communities and individuals on the frontlines of the climate struggle. That is why 150 non-governmental leaders and activists from different communities are coming together on September 18 and 19 for the ‘People’s Summit on Climate, Rights and Human Survival’. Our organisations will be there along with the United Nations Human Rights Office to support people demanding immediate and ambitious climate action from their governments to protect communities. We believe in unleashing the potential of a diverse movement to safeguard present and future generations. We are united to demand climate justice. Confirmed signers: Astrid Puentes, Co-Executive Director, Interamerican Association for Environmental Defense (AIDA) Bridget Burns, Director, Women’s Environment and Development Organization Carroll Muffett, President and CEO, Center for International Environmental Law Chris Grove, Executive Director, ESCR-Net Ellen Dorsey, Executive Director, Wallace Global Fund Gillian Caldwell, CEO, Global Witness Iago Hairon Souza, Coordinator, Engajamundo Jennifer Morgan, International Executive Director, Greenpeace International Kumi Naidoo, Secretary General, Amnesty International May Boeve, Executive Director, 350.org Phil Bloomer, Executive Director, Business & Human Rights Resource Centre Philip Alston, Center for Human Rights and Global Justice Chair, New York University Sharan Burrow, General Secretary, International Trade Union Confederation Sofia Monsalve, Secretary General, FIAN International Steve Trent, Executive Director, Environmental Justice Foundation Thalita Silva e Silva, Coordinator, Engajamundo
Read more