For 15 years, engineer and community organizer Alexis Massol González helped lead a campaign against proposed open-pit mining in Puerto Rico’s central mountains. The fight began in 1980, when the government was pursuing mineral development involving 17 deposits of copper, silver and gold across Adjuntas, Utuado, Lares and Jayuya. By 1995, the mining project had been discarded, and the campaign had helped produce a major change in Puerto Rico’s approach to environmentally destructive metallic-mineral extraction.
Massol’s most consequential contribution came after the immediate mining victory. Rather than treating the end of the project as the finish line, he and Casa Pueblo pushed for the threatened land to become a protected forest. In 1996, Bosque del Pueblo was established, creating a pioneering arrangement in which a community organization participated in managing publicly owned conservation land. The campaign therefore changed more than the fate of a proposed mine: it demonstrated a model of community-led environmental stewardship that Casa Pueblo subsequently extended into conservation, education, scientific research and sustainable development.
A Mountain Town at the Center of a National Dispute
Alexis Massol grew up in Adjuntas, a mountain municipality surrounded by forests and rivers in central Puerto Rico.
That landscape would become the foundation of his environmental work.
The region was also known for its mineral resources. By the late 1970s, the Puerto Rican government was promoting plans for mining operations across more than 35,000 acres of mountainous terrain. The deposits included copper, silver and gold, and the proposed extraction would have involved open-pit mining.
Casa Pueblo’s own history describes the proposed mining area as approximately 36,000 cuerdas across four municipalities.
For residents, the conflict was not simply about minerals.
The central mountains contain forests, farms and headwaters that serve communities downstream. The Goldman Environmental Prize notes that rivers originating in the region supply water to more than a million residents.
The question facing Adjuntas was therefore larger than whether a company could extract a valuable resource.
It was whether the economic value of the mineral deposits outweighed the environmental and social consequences of transforming the landscape.
The Creation of Casa Pueblo
In 1980, Massol and fellow community members began organizing against the mining plans.
The organization that developed into Casa Pueblo began as the Taller de Arte y Cultura de Adjuntas. Among its founders were Massol and Tinti Deyá Díaz, supported by volunteers from the community.
The choice to combine environmental activism with culture was significant.
Instead of establishing an organization focused exclusively on technical objections to mining, Casa Pueblo developed a community space where environmental issues could coexist with education, art and cultural activity.
That helped transform the campaign from a specialist environmental dispute into a community movement.
Massol’s role was consequently broader than that of a conventional environmental campaigner. He helped build an institution capable of educating residents, gathering technical knowledge, organizing opposition and eventually managing conservation projects.
Why Open-Pit Mining Became the Central Issue
The debate was partly about the method of extraction.
The mining proposals involved open-pit operations. Such mining requires the removal of large quantities of surface material to reach deposits beneath it, potentially producing extensive changes to the terrain and generating waste materials that must be managed.
The distinction became important in Puerto Rico’s eventual legislation.
In 1995, the island changed its mining framework to prohibit open-pit mining and other metallic-mineral extraction methods capable of significantly altering natural conditions. The legal change did not prohibit every conceivable form of mining, but it addressed the type of extraction at the center of the central-mountain controversy.
That legal precision matters because the story is sometimes simplified into a blanket “mining ban.”
The actual achievement was more specific: the regulatory framework was changed in a way that prevented the proposed open-pit mining model from proceeding.
The First Victory Was Not the Final Victory
The campaign illustrates why environmental conflicts rarely end with one decision.
In 1986, following grassroots opposition, the government rejected the mining proposal. But the issue returned.
In 1993, new mining permits were granted, according to the Goldman Environmental Prize’s account. Casa Pueblo responded by expanding the movement beyond its original community base and bringing together environmentalists, scientists, students, cultural groups and religious organizations.
The renewed campaign demonstrated the importance of institutional memory.
The community already had an organization, relationships and experience.
Instead of starting again from nothing, it could mobilize what had been built during the previous decade.
Casa Pueblo’s own chronology places the full anti-mining struggle between 1980 and 1995.
Building a Movement Around Science and Culture
Massol’s strategy was not based solely on protest.
Casa Pueblo sought to make technical environmental questions understandable to ordinary residents. The organization combined scientific information with cultural activities and community education.
That combination addressed two different problems.
Scientific research could establish what was known about the landscape and potential impacts.
Culture could give residents a reason to participate and a language through which the issue could be understood as part of their identity and community.
The result was an organization that Casa Pueblo describes as a project of community self-management committed to natural, cultural and human resources.
The distinction between an environmental organization and a community institution became increasingly important as the campaign developed.
The 1995 Turning Point
After years of organizing, the political environment finally shifted.
Puerto Rico adopted legislation in 1995 restricting open-pit mining and related methods of metallic-mineral extraction that could substantially alter natural conditions. The legislation addressed the environmental implications of mineral extraction in the mountainous region and changed the framework under which such projects could proceed.
Casa Pueblo records 1995 as the year the government abandoned the mining project after 15 years of struggle.
For Massol and the organization, this was a major victory.
But it immediately created another challenge.
If mining was no longer going to determine the future of the land, what would?
Massol’s Second Campaign: Protecting the Land
Massol advocated converting the former mining zone into a forest reserve.
In 1996, that vision became Bosque del Pueblo.
The reserve covered 303 hectares, or 748 acres, and represented a significant change in the status of land that had previously been considered for mineral development.
But the most innovative part was the management model.
Casa Pueblo entered into an agreement with Puerto Rico’s Department of Natural and Environmental Resources under which the community organization assumed a direct role in managing the government-owned forest.
This effectively changed the role of local residents.
They were no longer simply opponents of development.
They became stewards of the landscape.
Bosque del Pueblo as a New Model
Casa Pueblo describes Bosque del Pueblo as the first forest reserve in Puerto Rico managed through a community-management agreement. The Goldman Environmental Prize similarly identifies it as the island’s first government-owned reserve placed under community management.
A community management council brought together people with scientific, technical, educational and community backgrounds.
The work included:
- Ecological inventories
- Reforestation
- Biodiversity monitoring
- Trail development
- Environmental education
- Scientific research
- Cultural activities
The arrangement mattered because conservation became an activity rather than simply a legal designation.
A forest reserve can be created on paper.
Someone still has to monitor it, maintain it, study it and build public support for its continued protection.
The Forest Became a Scientific Resource
Massol’s approach did not frame community knowledge as an alternative to scientific expertise.
Instead, Casa Pueblo combined the two.
Its management program included scientific inventories and a permanent biodiversity-monitoring plot. Specialists, students and volunteers could participate in research and conservation activities.
That created another long-term benefit.
A community organization could maintain an ongoing relationship with the forest even when individual academic research projects ended.
The forest became both a conservation area and a place where ecological knowledge could accumulate over time.
Protecting Water as Well as Forests
The location of Bosque del Pueblo added another dimension to its importance.
The forest lies between the Pellejas and Viví rivers, which feed the Dos Bocas reservoir. It is also geographically connected to other protected forest areas.
That geography helped Casa Pueblo develop a broader understanding of conservation.
Protecting a forest is also partly about protecting the watershed connected to it.
The organization subsequently pursued conservation planning across Adjuntas and neighboring municipalities, seeking to connect forests and protect areas important for water production, agriculture and biodiversity.
The movement was therefore expanding from one threatened project to landscape-scale conservation.
From Protest to Proposal
One phrase captures the evolution of Massol’s work particularly well:
From protest to proposal.
The anti-mining campaign initially had a defensive objective: prevent the destruction of the central mountains.
But stopping a project did not automatically provide an alternative economic or environmental future.
Bosque del Pueblo supplied one.
Casa Pueblo subsequently developed projects involving environmental education, agriculture, community enterprise and renewable energy. The organization’s stated model emphasizes community self-management and sustainable economic alternatives.
This became an important part of Massol’s philosophy.
Environmental protection, in this model, should not simply tell a community what it cannot do.
It should help create practical alternatives.
The Broader Conservation Corridor
The work eventually moved beyond the boundaries of Bosque del Pueblo.
Casa Pueblo’s conservation planning connected protected areas and ecologically significant lands across multiple municipalities. The organization describes the effort as creating a biological corridor linking forests and protecting areas of high ecological, agricultural and water-producing value.
The significance of this shift is easy to overlook.
A single reserve protects a particular piece of land.
A connected conservation landscape can address relationships between forests, rivers, farms and wildlife habitats.
For Massol, the mining campaign had therefore become a foundation for a broader approach to environmental planning.
The Role of Economic Independence
Another distinctive element of Massol’s work was the attempt to give Casa Pueblo its own economic base.
The organization developed Café Madre Isla, a shade-grown coffee enterprise, alongside its conservation and cultural programs. Casa Pueblo describes the coffee operation as part of its effort to maintain economic self-sufficiency.
This matters because environmental organizations can become dependent on external donors, governments or political cycles.
An organization with some independent revenue has greater freedom to continue its work even when outside priorities change.
The model is not universally applicable, and commercial activity introduces its own challenges.
But the underlying principle is straightforward: environmental independence can be strengthened by economic independence.
Massol’s Work After the Mining Campaign
The end of the mining struggle did not mark the end of Massol’s environmental activism.
Casa Pueblo became involved in subsequent environmental controversies, including opposition to the proposed Via Verde natural-gas pipeline. It also expanded into forest education, renewable energy, biodiversity conservation and community development.
The organization’s headquarters itself became part of that experiment.
Its solar-powered facilities helped establish an energy project that later became particularly significant after Hurricane Maria devastated Puerto Rico’s electrical system in 2017. According to the Goldman Environmental Prize, Casa Pueblo distributed thousands of solar lanterns and installed distributed solar systems around Adjuntas after the hurricane.
The connection to the original mining campaign is conceptual rather than identical.
In both cases, Casa Pueblo emphasized community capacity instead of waiting entirely for solutions to arrive from outside.
Recognition from the Goldman Environmental Prize
Massol and Casa Pueblo received the Goldman Environmental Prize in 2002.
The award recognized Massol’s role in organizing the campaign against open-pit mining and establishing Bosque del Pueblo.
By then, the story had become internationally notable.
But the prize was recognition of a much longer process.
The campaign had lasted 15 years.
It had survived an initial government rejection, a renewed mining push, changing permits and political circumstances.
And after the mining proposal was stopped, the organization continued working to determine what the protected landscape would become.
What Actually Changed in Puerto Rico?
It would be too broad to say that Massol single-handedly transformed environmental policy in Puerto Rico.
The outcome depended on community members, volunteers, scientists, activists, cultural organizations, legislators, government officials and wider public participation.
Massol’s distinctive contribution was organizational and strategic.
He helped create an institution capable of connecting those constituencies.
The resulting model combined several elements:
| Element | Role in the campaign |
|---|---|
| Community organizing | Built sustained local participation over 15 years |
| Scientific knowledge | Helped document and explain environmental issues |
| Cultural activity | Connected conservation with community identity |
| Coalition building | Expanded the campaign beyond Adjuntas |
| Political and legal action | Contributed to changes in the framework governing mining |
| Community management | Turned opposition into direct stewardship of Bosque del Pueblo |
| Sustainable enterprises | Created an economic foundation for continued community work |
The important change was therefore institutional.
Environmental protection became something a local community could participate in organizing and managing rather than simply requesting from government.
The Limits of the Story
The history should not be turned into a simple formula suggesting that any community can defeat any industrial project through determination alone.
The circumstances in Adjuntas were particular.
There was a specific geological resource, a defined regulatory system, a long campaign, changing political conditions and an organization capable of maintaining community involvement for years.
Nor did the 1995 legislation make every type of mining impossible.
The Goldman Environmental Prize notes that the law prohibited open-pit mining rather than banning mining altogether, and describes open-pit extraction as the viable form of mining for the deposits at issue.
That qualification makes the achievement more useful as a case study.
It shows how environmental campaigns operate within particular legal systems rather than outside them.
The Legacy of Alexis Massol
Massol’s most lasting legacy may ultimately be less about the mining project than about what his organization built afterward.
Casa Pueblo did not dissolve when the mining campaign ended.
It became a continuing institution involved in forest management, conservation planning, education, culture, renewable energy and community economic development.
Bosque del Pueblo became the clearest physical expression of that philosophy.
Land once evaluated primarily for what could be extracted from it became a place where residents could study biodiversity, restore forests, educate students and participate in management.
The transition illustrates a broader principle in environmental protection: a successful campaign does not necessarily end when a destructive project is stopped. Its deeper test may be whether the community can build institutions capable of protecting the landscape afterward.
The Question Massol’s Story Leaves Behind
The central mountains of Puerto Rico presented Massol and his neighbors with a difficult choice about what the landscape should become.
The mining proposal offered one vision: extract valuable minerals from the mountains.
The community movement developed another: protect the forests and watersheds while creating institutions through which residents could participate in managing their natural resources.
The significance of Massol’s 15-year campaign lies in that second step.
He did not stop at opposition.
He helped turn the threatened landscape into Bosque del Pueblo, helped establish community participation in its management, and then used that experience as a foundation for wider conservation and community-development work.
That is why the story remains relevant decades after the mining proposal disappeared.
The lasting question is not simply whether a community can stop environmental destruction.
It is whether, after stopping it, the people who live there can gain enough knowledge, authority and institutional capacity to decide what the landscape becomes next.