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
Four Recommendations for the Summit of the Americas
Inequality has increased in the last decades in Latin America, and this clearly is an obstacle for democracy. Latin America remains the region with the greatest income inequality on the planet. Considering this, the Organization of American States has made "Prosperity with Equity" the theme of its upcoming Summit of the Americas. In Panama on April 10 and 11, Heads of State and Government will pledge concerted actions at both the national and regional levels to confront the development challenges of the continent. I believe that the main goal should be to just stop doing certain things, or, at least, to act differently. When I asked Eli, an indigenous Ngobe from Panama, what she wanted from her government, she said, "Just that they leave us alone." Drawing on OAS consultations with civil society, AIDA analyzed two of the eight Mandates for Action, the document to be negotiated at the Summit. From this analysis, we have made the following recommendations relating to the mandates on energy and the environment: 1. Stop building large dams The Mandates establish that the region will join the United Nations Initiative, Sustainable Energy for All (SE4ALL). Since access to energy plays a key role in reducing inequality, we recommend working with this initiative provided hydroelectric dams are excluded from sustainable energy. Among other harms, Dams produce greenhouse gases, aggravating climate change, especially in tropical regions. Dams cause irreparable harms to the environment and human rights violations. Dams typically cost twice as much as their developers’ estimates, even without considering their socio-environmental damages. In addition, constructing these energy dinosaurs takes much more time than expected. Three currently suspended dams prove the point: Belo Monte (Brazil) - Suspended after protests of affected communities whose compensation had been breached. It is a year late, and the project is facing fines and the possible payment of additional interest on loans from Brazil’s national development bank, BNDES. El Quimbo (Colombia) - The filling of the dam is suspended by judicial order for lack of an evaluation of its impact on the fishing sector. Barro Blanco (Panama) - Suspended by an order of the government while they revise—and hopefully fix—irregularities in the Environmental Impact Assessment. From all this, we remind the Summit of the Americas that last December more than 200 organizations, networks, and movements from across the world requested that governments, international organizations, and financial institutions realize that large dams are an unsustainable source of energy and implement truly sustainable solutions. 2. Recognize the human rights impact from climate change Climate change has caused and will continue to cause serious impacts in Latin America that are compromising the enjoyment of human rights. Climate change is a priority on the Summit’s agenda, which is good. But government leaders should incorporate an understanding of the relationship between climate change and human rights. They should commit to respect human rights in all climate actions. The United Nations and the OAS General Assembly have recognized that the respect for and enjoyment of human rights are intrinsically connected to climate change. The World Bank has concluded that climate change complicates efforts to end poverty, which has clear implications on human rights. Even the recent draft of the negotiating text of the United Nations Framework Convention on Climate Change contemplates the necessity to respect human rights. For all these reasons, the Summit should consider that the link between climate change and human rights must be incorporated into all actions seeking to combat inequality and promote better standards of living. 3. Include a commitment to mitigate climate change, not just adapt to it The Summit’s Mandates for Action refer to adaptation measures. But mitigation should not be left out. These actions would reflect the reality of the region, in which important efforts are being developed to confront climate change. Considering the principle of common but differentiated responsibilities, all States must demonstrate willingness to implement mitigation actions to confront climate change. Although not all States should mitigate to the same extent, all countries should contribute to this task—including those in Latin America. 4. Recognize that corruption undermines equity, and include actions to eradicate it The Mandates for Action recognize the impacts of corruption in as much as the use of technology is intended to improve public participation. But corruption is a structural problem in the region and actions to confront it should be part of democratic governance. Corruption has a direct relationship with inequality, systematically preventing real progress in the fight against poverty.
Read moreGeneva Conference must give clarity to climate finance
Negotiations for a new climate agreement, initiated last December during the United Nations Framework Convention on Climate Change (COP 20) in Lima, Peru, will continue this week in Geneva, Switzerland. Delegates there will work on detailing the various elements to be included in the negotiating text of the new climate agreement, including climate finance. Climate finance is a key factor in enabling developing countries to confront climate change effectively. "We hope the Geneva session concludes with a negotiating text that provides clarity for predictable and sustainable financing," said Andrea Rodriguez, attorney with the Interamerican Association for Environmental Defense (AIDA). "The agreement needs to establish with certainty the sources of finance, which institutions will mobilize and manage them, and how they will be disbursed, in order to ensure that these efforts contribute to low-emission, climate-resilient development in developing countries." The Conference in Peru ended with the Lima Call for Climate Action, a document whose annexes contain the essential elements for a draft negotiating text of the new climate agreement, which will be signed later this year at COP 21 in Paris. Delegates in Geneva are expected to intensify work on those key elements, and produce a negotiating text that will have legal force under the United Nations Framework Convention on Climate Change. Given the importance of the Geneva conference, AIDA is providing climate finance recommendations for negotiators to incorporate into the draft text of the new climate agreement: Clear provisions regarding who is required to mobilize resources. Clear goals beyond 2020 for a road map towards annual public financing targets. Scaling up of resources to ensure compliance with the existing commitment to mobilize $100 million by 2020, and to allow countries to plan their climate actions. Predictable, adequate and sufficient climate finance to promote the transition to low-carbon, climate-resilient development in developing countries. 50:50 balanced allocation of resources for adaptation and mitigation actions. Definitions of climate finance and climate investment. Clarity on which climate finance institutions will operate under the convention. Recognition of the Green Climate Fund as the primary channel to mobilize resources, without the exclusion of other funds. Strengthen the mandate of the Standing Committee of Finance to enhance coordination and coherence of work between different financial institutions.
Read moreGeneva Conference must give clarity to climate finance
Negotiations for a new climate agreement, initiated last December during the United Nations Framework Convention on Climate Change (COP 20) in Lima, Peru, will continue this week in Geneva, Switzerland. Delegates there will work on detailing the various elements to be included in the negotiating text of the new climate agreement, including climate finance. Climate finance is a key factor in enabling developing countries to confront climate change effectively. "We hope the Geneva session concludes with a negotiating text that provides clarity for predictable and sustainable financing," said Andrea Rodriguez, attorney with the Interamerican Association for Environmental Defense (AIDA). "The agreement needs to establish with certainty the sources of finance, which institutions will mobilize and manage them, and how they will be disbursed, in order to ensure that these efforts contribute to low-emission, climate-resilient development in developing countries." The Conference in Peru ended with the Lima Call for Climate Action, a document whose annexes contain the essential elements for a draft negotiating text of the new climate agreement, which will be signed later this year at COP 21 in Paris. Delegates in Geneva are expected to intensify work on those key elements, and produce a negotiating text that will have legal force under the United Nations Framework Convention on Climate Change. Given the importance of the Geneva conference, AIDA is providing climate finance recommendations for negotiators to incorporate into the draft text of the new climate agreement: Clear provisions regarding who is required to mobilize resources. Clear goals beyond 2020 for a road map towards annual public financing targets. Scaling up of resources to ensure compliance with the existing commitment to mobilize $100 million by 2020, and to allow countries to plan their climate actions. Predictable, adequate and sufficient climate finance to promote the transition to low-carbon, climate-resilient development in developing countries. 50:50 balanced allocation of resources for adaptation and mitigation actions. Definitions of climate finance and climate investment. Clarity on which climate finance institutions will operate under the convention. Recognition of the Green Climate Fund as the primary channel to mobilize resources, without the exclusion of other funds. Strengthen the mandate of the Standing Committee of Finance to enhance coordination and coherence of work between different financial institutions.
Read more