The Kayapó Indigenous Territory has become a major hotspot for illegal gold mining. It sits within Brazil’s Xingu River Basin, a key Amazon tributary. A new report from the watchdog Monitoring of the Andes Amazon Program (MAAP) confirms the alarming scale of destruction. The findings reveal a crisis that continues to grow.

According to Amazon Mining Watch, miners cleared at least 7,940 hectares (19,620 acres) of forest on Kayapó land since 2018. Roughly 140 hectares (346 acres) fell in 2025 alone. The Xingu Basin spans 51 million hectares (126 million acres), approximately the size of Spain. It cuts through Brazil’s Pará and Mato Grosso states.

The region hosts some of Brazil’s highest deforestation rates linked to illegal gold mining. Satellite data and watchdog monitoring paint a troubling picture. The destruction stretches across both Indigenous territories and protected areas. Experts warn of a well-organised support network enabling these illegal activities.

The Scale of Forest Loss Since 2018

Amazon Mining Watch recorded roughly 16,000 hectares (39,540 acres) of destroyed forest between 2018 and 2024. Miners added a further 400 hectares (990 acres) of mining-related deforestation between January and September 2025. These numbers reflect a sustained and expanding crisis. The pace of destruction shows no sign of slowing.

MAAP’s report states clearly that illegal mining in the Xingu Basin is not an isolated activity. It has spread across Indigenous territories and protected areas alike. The report identifies a support network providing operational capacity and infrastructure. This network enables miners to maintain and expand their activities deep inside the forest.

The destruction inside the Xingu Basin carries serious consequences. The Amazon rainforest plays a critical role in regulating the global climate. Each hectare lost reduces the forest’s ability to absorb carbon dioxide. The damage extends far beyond Brazil’s borders.

A Government Crackdown That Didn’t Last

In May 2025, the Brazilian government launched operations to remove illegal miners from the territory. Authorities destroyed 25 large excavators during the operation. They also dismantled almost 1,000 tents and more than 400 engines. The operation seized 63 grams (2.2 ounces) of gold.

Authorities also confiscated almost 500 kilograms (1,100 pounds) of refined cocaine and cocaine base paste. The haul exposed the criminal networks operating alongside mining activities. The government’s operation in May did not produce lasting gains. Just one month later, in June 2025, illegal deforestation dropped to only 2 hectares (5 acres).

However, mining activities began to encroach on the forest again by October 2025. MAAP’s satellite monitoring recorded an additional 15 hectares (37 acres) of deforestation that month. The pattern shows that enforcement alone cannot sustain results. Miners return quickly once authorities withdraw from the area.

Rivers, Health and Communities Under Threat

The environmental and human toll of illegal mining reaches far beyond the loss of trees. Miners use mercury in their operations, and it contaminates the rivers that local communities depend on. These rivers serve as sources of drinking water, bathing and fishing. Mercury poisoning poses a severe and long-term health risk.

Stagnant pools of mining waste create additional dangers for nearby populations. These pools become breeding grounds for mosquitoes and other disease vectors. Outbreaks of malaria and yellow fever occur frequently in mining-affected areas. The MAAP report highlights these public health risks as a serious consequence of unchecked mining.

The spread of illegal operations brings a series of serious risks to the region and its communities. Infrastructure supporting the mining industry enables rapid expansion into previously untouched areas. Communities living within these territories face increasing pressure on their health, water and way of life. The crisis demands urgent and sustained attention from Brazilian authorities.

Multiple Protected Areas and Indigenous Lands Affected

Mining and deforestation in the Xingu Basin corridor affects five protected areas. These include the Altamira National Forest and the Iriri State Forest. The Riozinho do Anfrísio Extractive Reserve also faces damage. The Nascentes da Serra do Cachimbo Biological Reserve and the Rio Iriri Extractive Reserve round out the affected zones.

Five Indigenous territories also face direct threats from mining encroachment. The Kayapó, Baú, Kuruaya, Trincheira Bacajá and Apyterewa lands all suffer ongoing damage. In the Baú Indigenous Territory, mining has also left visible scars on the landscape. The scale of affected land underlines the breadth of this environmental emergency.

The MAAP report emphasises that this expansion reflects an organised and resourced illegal industry. Miners do not operate spontaneously or in isolation. They rely on logistics, supply chains and infrastructure networks. Dismantling those networks requires more than temporary enforcement operations.

Satellite Monitoring Reveals the Full Picture

Satellite technology plays a crucial role in tracking the spread of illegal mining. MAAP uses satellite monitoring to detect deforestation in near real time. The Copernicus Sentinel-3 satellites also contribute to environmental monitoring across the region. These tools give researchers and authorities vital data to track and respond to destruction.

The data shows a clear cyclical pattern of destruction. Government operations suppress mining activity temporarily. Miners then return and resume clearing forest within weeks or months. Only sustained, long-term enforcement and legal protection can break this cycle.

Brazil faces significant challenges in policing the vast and remote Xingu Basin. The sheer size of the region — roughly equivalent to Spain — makes comprehensive monitoring difficult. Criminal networks exploit this vastness to evade authorities. Technology and international cooperation offer the most effective tools for a lasting response.

An Urgent Call for Lasting Solutions

The MAAP watchdog report makes clear that the Xingu Basin crisis demands immediate action. Illegal mining threatens biodiversity, Indigenous rights and global climate stability. The Brazilian government’s May 2025 operation showed what enforcement can achieve short-term. But only sustained pressure will protect these lands for future generations.

The Kayapó and neighbouring Indigenous communities bear the heaviest burden of this crisis. They face contaminated water, disease outbreaks and the destruction of their ancestral lands. Their survival depends on effective protection of the territories where they live. The international community must support Brazil in defending the Amazon’s most vulnerable regions.

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