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
The Risks of the Salmon Industry’s Expansion in Chilean Patagonia
In Chile, the salmon industry has grown rapidly over the last 20 years, often at the expense of the environment, as has been made evident in the regions of Los Lagos and Aysén, where salmon farms have been firmly established. In search of more pristine waters, the industry is now settling into the country’s last virgin coasts, in the region of Magallanes, in Southern Patagonia. The expansion is taking place without scientific evidence or serious studies to establish the limits of production in terms of water capacity. This could have catastrophic consequences for local ecosystems, a fact that has sparked concern among environmental organizations. The purpose of this report, written for AIDA by the biologist Héctor Kol, with the support of the Waitt Foundation, is to contribute to the understanding of the current and potential damages that the industrial production of salmon implies for Magallanes. With this, it also seeks to contribute to the effective protection of the aquatic-marine environment of Patagonia, through the use of existing legal tools. The document presents a detailed analysis of the situation of salmon farms in Magallanes, responding to the following questions: How many exist? Where are they? How much do they produce and in what conditions do they do so? The study includes the farms already authorized by the government and those whose permits are in process. These were divided by geographical sectors to facilitate the analysis. The information on each project includes a location map and estimates of the amount of waste left in the waters, a key aspect to determining their impact on marine life. In this way, the author illustrates the magnitude of the problem. The report also contains basic information on the authorization process for this type of project and on the regulations that exist for the sector, as well as an annex with scientific and legal documents related to each project. The analysis leads to several important conclusions, including the following: Of the 261 projects analyzed, a little less than half have been authorized and the rest could receive their authorizations in the short- and medium- term. This demonstrates the rapid growth of the industry in the region and alerts to the need for constant monitoring, above all of the environmental and sanitary conditions in which they operate. Of the authorized projects only 35 (equivalent to 25 percent of the total) are effectively in operation. There exist, in a same geographic sector and without explanation, large differences in the production and quantity of waste that the government has authorized for different subsectors. This demonstrates the lack of a scientific evaluation that would guarantee the water’s capacity to safely receive the authorized amounts of waste. More than half of the projects currently in operation have generated a total or partial lack of oxygen in the water, which gravely affects marine life. Even more serious is that at least nine of them are located in protected natural areas. This demonstrates that, before operating permits were authorized, adequate studies were not conducted to ensure that the capacity of the waters would not be exceeded by the quantity of fish authorized for breeding. It also means that projects are not subject to appropriate environmental impact assessments. There is not environmental information available for all the authorized projects, which makes it impossible to determine with greater precision the potential damages that the salmon industry could cause in Magallanes. In short, the study concludes that neither the State nor the salmon companies have done enough to prevent the damages already caused by the industry in other regions of Chile, which may now be repeated in one of the country’s most pristine natural areas. Consult and download the complete report (in Spanish) MAP - Salmon farms by geographic area Red icons and polygons: projects with authorized aquaculture concession, approved Technical Project and available environmental assessment (104 in total). White icons and red polygons: projects with authorized aquaculture concession and approved Technical Project, but without RCA or environmental information available (22 in total). Yellow icons and polygons: pending projects, without approved aquaculture concession, but with approved Technical Project (10 in total). Icons and green polygons: pending projects, without approved aquaculture concession and without approved Technical Project, but considered viable by the SUBPESCA (124 in total). View larger map
Read more
Eight key themes for Colombia’s environmental agenda in 2018
For Colombia, 2017 was a year marked by debate on the right of communities to be consulted about decisions that affect their territories and ecosystems. We saw it through the organization of popular consultations and mobilizations that questioned mining and fracking projects and, in short, the continuity of extractivism. It was also evident in the decision of the Constitutional Court, the highest court in the country, to invalidate the delimitation of the Santurbán páramo, a water source for millions, because the government’s decision did not take into account the population. On the other hand, Colombia joined the global debate on climate change and the need to promote a model of economic development free of fossil fuels. Now, in the face of the presidential elections and the implementation of the peace accord, environmental participation, territorial autonomy and fracking remain particularly important issues. What follows are eight topics key to Colombia’s environmental agenda in 2018: Environmental participation: Popular consultations, as an expression of empowered communities seeking to have a say on projects that will affect them, will continue holding a privileged place in public debate. Territorial autonomy: Although constitutionally recognized, the ability of departments and municipalities to govern themselves autonomously in various areas, including the environment, is not entirely defined. It remains to be answered: Who should decide? And about what can they decide? Indigenous authorities: Following on the heels of the above, the autonomy and decision-making ability of indigenous authorities in relation to environmental issues will give us much to discuss this year. Fracking: The key question is, faced with fracking’s expansion throughout the region, will Colombia adopt the position of social organizations on the application of the precautionary principle to avoid the health and environmental damages associated with fracking? Decarbonization: As an energy producer, will Colombia join France, the United Kingdom and Italy, nations that recently signed an alliance to close coal plants before 2030 and comply with the Paris climate agreement? La Niña: The strong winds and rains of the La Niña climate phenomenon will return to the country this year. Adequate measures to mitigate the risk will be fundamental, as will the application of lessons learned in 2010, when the phenomenon left hundreds dead and the loss of millions of pesos. Páramos: Following the decision of the Constitutional Court to invalidate the delimitation of the Santurbán páramo, this year promises to be full of controversies about the new delimitation of this important ecosystem. Also key will be the issue of community participation in the demarcation of the rest of Colombia’s páramos, a measure oriented to protect them against harmful projects like mining. Principle 10: The negotiation of a regional agreement on the access to information, to justice and to public participation on environmental issues, remains underway. The agreement seeks the application of Principle 10 of the Rio Declaration on Environment and Development, key to guaranteeing the right to a healthy and sustainable environment for present and future generations. At AIDA, and through the Network for Environmental Justice in Colombia, we will continue to promote solutions to the country’s environmental conflicts based on the effective application of national and international standards.
Read more
Sea turtle populations show sign of a comeback
Before 2008, hawksbill turtles had virtually disappeared from the Eastern Pacific. But small-scale conservation efforts enabled their return to the shores of El Salvador and Nicaragua, where researchers found them again laying eggs and slowly beginning to rebuild their population. Sea turtles are migratory animals. They spend most of their lives at sea, nesting on the beaches of various countries along their route. Among the main threats to their health are unsustainable fishing practices (they often get trapped in fishing nets) and inadequately developed projects in marine and coastal areas. The appearance of these turtles on Central American beaches, among other such events, demonstrates the success of small-scale conservation efforts, and the need for them to continue. Signs of recovery According to the recent study, Global sea turtle conservation successes, over the last decade sea turtle hatcheries have helped some populations rebound after historic declines. That’s the case of olive ridley turtles in the northeast Indian Ocean and of green turtles in the South Central Atlantic. After years of implementation, the protection of beaches, the regulation of fishing, and the creation of marine protected areas have helped improve sea turtle populations in waters around the world, according to researchers. The study also shows that, with adequate protections, even small populations of sea turtles have a chance of survival. Researchers found, for example, that in the area of Hawaii called French Frigate Shoals, the population of nesting green sea turtles increased from around 200 in 1973 – when the Endangered Species Act was created – to upwards of 2,000 in 2012. Green turtles are now considered a species of “minor concern” by the International Union for the Conservation of Nature. Our contribution Sea turtle conservation, like that of other animals and plants, requires that organizations, communities, and governments work together. Such collaboration is a main tenant of AIDA’s work. In 1998, we organized a campaign to get the signatures needed for the negotiation of an international treaty to promote the protection, conservation and recovery of sea turtle populations. We are currently working to ensure that governments who signed the treaty are operating in compliance with it. We also helped save green turtles in Costa Rica, and are currently working to protect the Veracruz Reef System in Mexico, in whose warm and shallow waters hundreds of hawksbill and Atlantic ridley turtles swim. Both species are at risk due to the expansion of the Port of Veracruz, a project that would cause serious damage to the expansive reef system. Much work remains Despite the impressive recovery of several species of turtle, there are others that remain in need of protection, as their numbers continue to decline worldwide. This is the case, according to the study, of both the leatherback turtle in the eastern and western Pacific and of the flatback turtle in Australia. A new beacon of hope for turtles can be found in the development, before the United Nations, of a treaty to protect the high seas, those international waters that belong to no country (but make up two-thirds of the world’s oceans). Sea turtles, sharks, whales and birds live in these waters or travel them as part of their migratory routes. Through our active role in the treaty’s development, we seek to create Marine Protected Areas to ensure the high seas remain a safe home for not just sea turtles, but for the many species of plants and animals that contribute to the health of the oceans and support the global food supply.
Read more