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
Six advances for Latin America’s reefs in 2018
In 2018, we joined people and organizations around the world in celebrating the International Year of the Reef. AIDA was part of a global movement to increase awareness of the value of reefs and the threats they’re facing. To advance reef conservation in the Americas, we took part in a variety of legal actions to protect reefs in Mexico and the Caribbean. As always, we’re proud to celebrate the small victories we’ve achieved on the road to environmental justice in 2018. Together with our supporters and allies we: Supported a case in defense of the Veracruz Reef In February, we presented an amicus brief in support of an amparo filed by local residents against the expansion of the Port of Veracruz. We outlined how Mexico’s approval of the project in 2013 violated the nation’s international environmental and human rights commitments. Just a year earlier, the government had reduced the area of the reef system, changing its boundaries to make the project viable. At the time of authorization, adequate scientific information was not available to understand how to avoid damaging the reefs and protect the services they provide to the people of Veracruz. To raise awareness of the issue, we also co-produced a documentary, Battle for the Reefs of Veracruz. Alerted the Ramsar Convention to threats to Puerto Morelos Reef We sent an Urgent Alert to the Secretariat of the Ramsar Convention, alerting them to the threats to Puerto Morelos Reef National Park, a national protected area and Wetland of International Importance. Together with a coalition of civil society organizations, we solicited a visit of international experts to evaluate the risks facing the site, particularly changes in land use in coastal ecosystems due to massive and unsustainable tourism development. Created a Working Group on Threats to Mexico’s Wetlands In May, the Working Group on Threats was created within the National Wetlands Committee, which AIDA helped create in order to motivate Mexico to comply with its obligations to protect at-risk wetlands of international importance. Within the framework of this Group, efforts are being made to strengthen national actions to protect Ramsar ecosystems, including reefs and the herbivorous fish that make their home in them. Supported the protection of 10 species of parrotfish in Mexico’s Caribbean In October we presented a letter of support outlining international environmental and human rights arguments for the inclusion of 10 species of parrotfish on Mexico’s national list of at-risk species. While the inclusion has been acknowledged and accepted, official confirmation is expected early this year. Our efforts supported a proposal of the Health Reefs Initiative that seeks to legally protect parrotfish species, which are critical to maintaining a healthy coral reef ecosystem. Parrotfish and other herbivorous fish feed on algae that compete with corals for light and oxygen, thus enabling the reef to flourish. Helped Establish a Working Group on Corals in Costa Rica In coordination with the Ministry of Environment, we helped organize a working group of academic experts, members of civil society and competent governmental authorities that will propose comprehensive solutions to the problems facing the country’s coral ecosystems. Together we will work to ensure integral solutions to protect Costa Rica’s coral reefs. Supported a Working Group on Herbivorous Fish in Guatemala In coordination with the Healthy Reefs Initiative, academics from San Carlos University and members of the government, we’ve supported the creation of a working group to draft a technical-scientific document that outlines the information necessary for a ministerial decree to prohibit the fishing of herbivorous fish in the Guatemalan Caribbean and, thus, protect the nation’s reefs.
Read moreSix advances for Latin America’s reefs in 2018
In 2018, we joined people and organizations around the world in celebrating the International Year of the Reef. AIDA was part of a global movement to increase awareness of the value of reefs and the threats they’re facing. To advance reef conservation in the Americas, we took part in a variety of legal actions to protect reefs in Mexico and the Caribbean. As always, we’re proud to celebrate the small victories we’ve achieved on the road to environmental justice in 2018. Together with our supporters and allies we: Supported a case in defense of the Veracruz Reef In February, we presented an amicus brief in support of an amparo filed by local residents against the expansion of the Port of Veracruz. We outlined how Mexico’s approval of the project in 2013 violated the nation’s international environmental and human rights commitments. Just a year earlier, the government had reduced the area of the reef system, changing its boundaries to make the project viable. At the time of authorization, adequate scientific information was not available to understand how to avoid damaging the reefs and protect the services they provide to the people of Veracruz. To raise awareness of the issue, we also co-produced a documentary, Battle for the Reefs of Veracruz. Alerted the Ramsar Convention to threats to Puerto Morelos Reef We sent an Urgent Alert to the Secretariat of the Ramsar Convention, alerting them to the threats to Puerto Morelos Reef National Park, a national protected area and Wetland of International Importance. Together with a coalition of civil society organizations, we solicited a visit of international experts to evaluate the risks facing the site, particularly changes in land use in coastal ecosystems due to massive and unsustainable tourism development. Created a Working Group on Threats to Mexico’s Wetlands In May, the Working Group on Threats was created within the National Wetlands Committee, which AIDA helped create in order to motivate Mexico to comply with its obligations to protect at-risk wetlands of international importance. Within the framework of this Group, efforts are being made to strengthen national actions to protect Ramsar ecosystems, including reefs and the herbivorous fish that make their home in them. Supported the protection of 10 species of parrotfish in Mexico’s Caribbean In October we presented a letter of support outlining international environmental and human rights arguments for the inclusion of 10 species of parrotfish on Mexico’s national list of at-risk species. While the inclusion has been acknowledged and accepted, official confirmation is expected early this year. Our efforts supported a proposal of the Health Reefs Initiative that seeks to legally protect parrotfish species, which are critical to maintaining a healthy coral reef ecosystem. Parrotfish and other herbivorous fish feed on algae that compete with corals for light and oxygen, thus enabling the reef to flourish. Helped Establish a Working Group on Corals in Costa Rica In coordination with the Ministry of Environment, we helped organize a working group of academic experts, members of civil society and competent governmental authorities that will propose comprehensive solutions to the problems facing the country’s coral ecosystems. Together we will work to ensure integral solutions to protect Costa Rica’s coral reefs. Supported a Working Group on Herbivorous Fish in Guatemala In coordination with the Healthy Reefs Initiative, academics from San Carlos University and members of the government, we’ve supported the creation of a working group to draft a technical-scientific document that outlines the information necessary for a ministerial decree to prohibit the fishing of herbivorous fish in the Guatemalan Caribbean and, thus, protect the nation’s reefs.
Read more
10 environmental successes from Latin America in 2018
This year was characterized by triumphs such as the creation of legal protections and the establishment of policies favorable to the environment and human rights in the region. Rarely in a single year do we see so many precedent-setting institutional advances. What follows are 10 stories we applaud from 2018: 1. For the first time, the Inter-American Court recognized a healthy environment as “fundamental” In its first time speaking on the subject, the Court concluded that a healthy environment is an autonomous right, “fundamental to the existence of humanity.” The relationship between the environment and human rights may sound obvious, but until February of this year, when the Court’s opinion was made public, there were no precedents of this magnitude recognizing the link. The opinion responds to a query made by Colombia. In it, the Court also recognizes that climate change impacts the enjoyment of human rights, especially among the most vulnerable populations. The OC-23, as it is known, established a historic precedent for the protection of human rights in the Americas and will be an important tool for environmental justice in the region. Learn more 2. Nations adopt the first regional treaty on environmental issues Over the course of the year, 16 nations have signed the Escazú Agreement. Not only is it the first treaty on environmental issues in Latin America and the Caribbean, it is also the first in the world to include provisions on human rights defenders in environmental matters. Its main objective is to guarantee the rights of access to environmental information, public participation in environmental decision-making processes, and justice in environmental matters. Learn more 3. Parrotfish receive special protection in Mexico Schools of colorful parrotfish feed on the macro algae that compete with coral for light and oxygen, helping to improve coral health. But overfishing and other factors have caused parrotfish populations to decline, placing corals at greater risk. In an effort to protect this key ally of the reefs, 10 species of parrotfish are in the process of being included in the Mexican government’s list of protected fauna. Learn more 4. Indigenous peoples recognized in climate finance Following years of work by indigenous peoples around the world, the Green Climate Fund approved an Indigenous Peoples Policy with the objective of protecting, recognizing, respecting and promoting their rights within the financing of climate projects. The decision was received with hope in a world that requires immediate actions to mitigate and adapt to climate change. This sort of policy helps to prevent climate finance from violating the rights of the most affected populations. Learn more 5. A regional plan to protect jaguars Conservation organizations teamed with 14 nations to launch Plan Jaguar 2030 with the intention of protecting corridors, or natural routes, linking populations of the largest carnivore in Latin America without natural predators. Jaguar populations extend through 18 countries, but are rapidly diminishing due to poaching, habitat fragmentation, and conflict with human activities. In El Salvador and Uruguay, they have been declared extinct. The plan provides hope for jaguar protection across borders. Learn more 6. Colombia says no to fracking pilot tests The Colombian Environmental Licensing Authority (ANLA, for its initials in Spanish) denied permission for ConocoPhillips to carry out the first hydraulic fracturing pilot tests for the extraction of hydrocarbons in San Martin and Aguachica, in the department of Cesar. ANLA argued that the information presented by the corporation was “insufficient” to understand the management and availability of water, and also questioned its environmental evaluation and contingency plan. For now, the initiative is archived. Continuing to bet on fossil fuels moves nations further away their climate goals; it is important to commit to a clean energy transition. Learn more 7. A region fight against fracking reaches the Inter-American Commission Organizations and communities from across the region joined forces to bring before the Inter-American Commission on Human Rights cases of human rights violations and threats to the environment caused by fracking. After various local struggles, this was the first time that the damages documented in nations across the Americas were presented before a regional organization. The Commissioners responded with great interest to the testimonies presented. Regarding this issue, the new government of Mexico said there will be no more fracking in the nation. Learn more 8. A treaty to protect two-thirds of the ocean Following a decade of discussions, negotiations began at the United Nations for a legally binding treaty to protect biodiversity on the high seas, those marine areas outside of national jurisdictions. Negotiations will take place until 2020. Although the high seas represent 64 percent of the total surface area of the ocean, and the ocean absorbs 90 percent of the heat caused by global warming, no overarching treaty exists to protect this ecosystem, only fragmented regulations. Learn more 9. Chile closes the Pascua Lama mine In October Chilean authorities confirmed the definitive closure of Pascua Lama, a gold mining project on the border of Chile and Argentina. Barrick Gold, the company in charge of the project, was fined for 33 violations of Chilean environment regulations. Pascua Lama caused great damage to native plants and animals. Indigenous peoples of the region—who had documented the contamination of a river and impacts on glaciers, an important water source—celebrated the decision. Activists are now seeking to stop the project on the Argentina side of the border. Learn more 10. Argentina’s creation of National Parks breaks record Just before the end of the year, Argentina announced the creation of two marine protected areas: Yanganes, south of Tierra del Fuego, and Namuncurá-Burdwood Bank II, in the south Atlantic. Both are important sites for the breeding and spawning of fish with high commercial value. With this pair, the country added six natural areas declared as national parks in 2018 alone, a truly historic effort. The other parks include: Traslasierra, Aconquija, Ciervo de los Pantanos and Iguerá. Argentina has proposed the protection of 10 percent of its seas by 2020. Learn more
Read more