
This is the second in a series of reports detailing the expansion of gold mining in the Ecuadorian Amazon.
In the first report (MAAP #227), we analyzed mining expansion in the northern sector, around the Cofán Bermejo Ecological Reserve, near the Colombian border.
In this current report, we focus on mining deforestation in the central sector, specifically in the Napo province, part of one of Ecuador’s main water systems.
Base Map 1 indicates these two areas in relation to the most recent mining detection data from Amazon Mining Watch (AMW), highlighting the most recent mining deforestation (2019-2024) in red.
Note that within and surrounding the current report focal area (purple circle), there are several Indigenous territories and two key protected areas (Sumaco Napo Galeras National Park and Colonso Chalupas Biological Reserve).
Mining in the Napo province
Napo, one of Ecuador’s six Amazonian provinces, is home to valuable Andean-Amazonian watersheds rich in ecosystem services, making it a priority area for biodiversity conservation and sustainable natural resource management. However, its main rivers are threatened by gold mining, the social and ecological consequences of which are profoundly negative.
In a previous report, MAAP #151, we warned about the rapid expansion of gold mining in the Yutzupino sector, on the banks of the Jatunyacu River. This sector has been the target of various control operations, such as the three so-called Manatí operations, and a technical report on the oversight and monitoring of illegal mining presented to Ecuador’s National Assembly in 2022.
In subsequent reports (MAAP #162 and MAAP #184), the area of analysis of mining deforestation in the Napo province was expanded to include the Jatunyacu, Anzu, and Huambuno Rivers.
This current update presents more recent data (2024), incorporating four key case studies: the Jatunyacu, Anzu, Huambuno, and Puni-Cotona-Arajuno Rivers (see Base Map 2).
Gold mining not only poses environmental hazards, such as forest destruction, water pollution, and ecosystem degradation (see Image 1), but also causes social conflicts and disputes with local communities, who depend on the land and natural resources for their livelihoods and quality of life. The appreciation of gold in the international market poses a challenge to the implementation of sustainable economic alternatives such as ecotourism. However, the ecological and cultural importance of these aquatic ecosystems has generated sound conservation proposals, as detailed in MAAP #202.
Image 1. Left: River in Napo province with no impact from mining activities; Right: Impact of mining activities on riparian forests in Napo province. Source: EcoCiencia (2025)
Dynamics of gold mining deforestation
Below is Chart 1, with biannual data analyzing the growth of the mining area in Napo province from 2007 to 2023. During this period, the total area linked to mining exceeded 1,300 hectares.
The analysis reveals a trend of sustained increase in mining activity over time, with a particularly notable increase starting in 2017.
Chart 1. Dynamics of mining activity in the Napo province from 2007 to 2023. Data: MapBiomas Ecuador – EcoCiencia
Case studies
We chose four key case studies to analyze the dynamics of the expansion of mining areas within the Napo province during the period 2017-2024 (see Base Map 2).

Cas3 1: Jatunyacu River

This case extends along the banks of the Jatunyacu River from the town of El Cando in the west to its confluence with the Anzu River in the Yutzupino sector. It also includes the Yutsupino River, a tributary of the Jatunyacu River, and several sectors located on the outskirts of the urban boundary south of the city of Tena. This has an important connotation, as it shows that mining activities are not only taking place in remote areas, but are also advancing into highly populated areas.
Between January 2017 and December 2022, 126 hectares were affected by mining. During 2023, the impacted area increased by 162 hectares, and in 2024 a further increase of 214 hectares was recorded. In total, from January 2017 to December 2024, the area affected by mining totals 502 hectares, approximately equivalent to 703 professional soccer fields.
Furthermore, we found that some mining activity has been carried out outside the areas authorized by the mining registry, that is, in areas that do not have the corresponding permits for such activity. These areas total 6.62 hectares, representing just 0.01% of the total identified, but are significant due to their unauthorized nature.
Most mining activities are located within concessions registered in the mining registry. However, few concessions have the additional permits required to carry out mining activities. Furthermore, some of these authorized concessions, although they have processed and received additional permits, have been suspended due to non-compliance with the environmental management plan and violations of the current environmental license.

In order to analyze the details of mining activities in this case study, two areas, indicated as A and B (see Case 1) were selected for further analysis.
In the case of area A, Panel 1 shows the expansion of mining activity between September 2022 (top left panel) and April 2025 (top right panel).
Furthermore, drone photographs from June 2025 reveal additional details, such as mining pits, the removal of vegetation cover, eroded soil, and other effects produced by mining activity.

For area B, panel 2 shows the opening of 4.43 km of new roads entering the Yutsupino River between 2022 and 2025, which has facilitated access for the opening of new mining fronts, avoiding a police checkpoint at the entrance to the Yutzupino sector in Puerto Napo.
Case 2: Anzu

Case 2 extends over the Piocullín, Chumbiyacu, Shichuyacu, Ila, Yurasyacu, and Anzu rivers, where 329 hectares were impacted by mining during the period from January 2017 to December 2022.
An additional 63 hectares were impacted in 2023, and 243 hectates in 2024.
In total, 635 hectares in this area were impacted by mining, equivalent to 889 professional soccer fields.
Additionally, mining activity was identified outside the cadastre, corresponding to 94 hectares, representing 15% of the total identified.
Caso 3: Huambuno

En este caso, realizamos un análisis hasta diciembre 2024, sobre la situación en las orillas del río Huambuno.
En el reporte MAAP #184 se documentó una expansión minera de 238 hectáreas afectadas por minería desde mayo 2017 a enero 2023.
En este nuevo análisis, se identificó un aumento de 124 hectáreas para el año 2023 (enero – diciembre 2023) y un incremento de 130 hectáreas para el año 2024 (enero – diciembre 2024).
Lo que suma un total de 492 hectáreas (equivalente a 689 canchas de fútbol) afectadas por minería desde mayo 2017 a diciembre 2024.
Adicionalmente, se identificaron 115 hectáreas de actividad minera fuera del catastro, lo que representa el 23 % del total identificado.
Caso 4: Puní-Cotona-Arajuno

Se analiza para este caso, un sector con poca superposición del catastro minero, en donde las actividades mineras sin autorización crecieron aproximadamente un 2700% desde el primer periodo de monitoreo, entre 2017 y 2022, hasta el año 2024.
Es así como, entre enero de 2017 y diciembre de 2022, se identificaron solo 4 hectáreas afectadas por actividades mineras en la zona.
En el año 2023 (enero-diciembre), la superficie intervenida aumentó en 26 hectáreas, y para 2024 (enero-diciembre), se registró un incremento adicional de 82 hectáreas.
En total, durante el período analizado, 112 hectáreas fueron impactadas por la actividad minera en el entorno del río Puní, Cotona y Arajuno, lo que equivale aproximadamente a 157 canchas de fútbol profesional.
También, se evidenciaron 111 hectáreas de actividad minera fuera del catastro oficial, correspondiente al 99% del total identificado reflejando una fuerte presencia de minería no autorizada en este sector.
Implicaciones políticas
La reciente deforestación por actividades mineras descrita anteriormente destaca necesidades políticas clave:
Agradecimientos
Agradecemos a Ecuadorian Rivers Institute por sus aportes en este informe.
Este informe es parte de una serie enfocada en la Amazonía ecuatoriana a través de una colaboración estratégica entre las organizaciones Fundación EcoCiencia y Amazon Conservation, con el apoyo de la Fundación Gordon y Betty Moore.