Thousands in the region rely on small-scale gold mining for income. The draft and the mine workings have driven mercury contamination and forest loss across one of the Amazon’s most biodiverse areas, and miners in La Pampa say they are attempting an alternative. The operation uses gravimetric separation, sintering of concentrates and solar panels, steps miners describe as a path to “ecological” or mercury-free gold.
That technical claim sits alongside practical obstacles. Dozens of people reportedly set a police truck on fire during clashes that temporarily closed the Interoceanic Highway at kilometre 109-110 in the La Pampa sector. Miners and police have been confronting each other there, interrupting transport and increasing the security risks for both formal and informal operations.
On the ground, miners also describe bureaucratic and market hurdles. Many workers lack the documentation the market expects, meaning transactions are often settled with receipts rather than invoices. That gap makes spare parts and services effectively more expensive for miners who want to formalise, and it limits access to legal buyers and stable prices for mercury-free product.
Proponents of the formalised operation emphasise that the necessary equipment already exists and can recover fine gold without using quicksilver. They argue the challenge is converting that technology into a commercially viable model, requiring sustained funding, supply-chain links and official recognition. Without those supports, miners warn, the economic pressures that drive mercury use and illegal activity will persist.
The project received support through an Amazon Film Grant and the One World Media Fellowship, which documented daily life and the tensions between survival, pollution and legitimacy in La Pampa. Miners express cautious hope that state attention and investment could make mercury-free mining scalable, but say the immediate priorities are safer roads, clear documentation and buyers willing to pay for formal, mercury-free gold.
If those conditions are not met, the region risks continued environmental harm and cycles of violence that undercut any technical gains. The operation in La Pampa offers a working model, but its future depends on whether authorities and markets close the gap between equipment and a viable, long-term economy for artisanal miners.
