Police in Mexico’s Puebla state uncovered a concealed cryptocurrency mining operation in the Sierra Norte region after residents reported a persistent mechanical hum and unusually high electricity use. Authorities said the site contained 300 GPU-based mining machines and had been connected illegally to the Nuevo Necaxa hydroelectric grid.
The facility was located deep in the jungle, more than two miles from the nearest village, and could only be reached by a rough gravel road. Officials also found a custom pedestal transformer and eight Starlink-class satellite internet antennas, indicating a more advanced setup than a small improvised mine.
Discovery followed local complaints
The case began when nearby residents noticed a constant whirring sound and what officials described as an unexplained rise in local power demand. Police in Tlaola followed those signs into the mountainous forest area, where dense terrain can conceal both the noise of cooling systems and the movement of heavy equipment.
According to the report, federal and state law enforcement agencies took part in the operation. The mining farm had been established in an isolated area of the Sierra Norte, a region where sparse policing and difficult access can complicate enforcement.
Illegal connection to hydroelectric power
Authorities said the installation was drawing electricity unlawfully from infrastructure linked to the Nuevo Necaxa hydroelectric dam. The use of hydropower, combined with the presence of a dedicated transformer, suggested a deliberately engineered power arrangement rather than a temporary or low-capacity setup.
Police found 300 GPU miners operating at the site. The report described the machines as humming away inside the hidden facility, supported by communications equipment that included eight satellite internet antennas identified as Starlink-class.
Fourth hidden mine in the region since 2025
Officials said this is the fourth clandestine cryptocurrency mining operation discovered in Puebla’s Sierra Norte forest region since the start of 2025. That tally has raised concerns that the area is becoming a recurring target for electricity theft tied to digital asset mining.
The article said analysts believe organized crime networks may be behind the increasingly sophisticated infrastructure being used in such sites. Authorities have not publicly detailed further evidence beyond the equipment and illegal grid connection, so those assessments remain attributed rather than confirmed findings of a court or public indictment.
What the case suggests next
The discovery adds to a broader pattern of reported power theft for crypto mining, including cases in other countries, but this Puebla site stands out for its remote placement and scale. Its location near hydroelectric infrastructure appears to have offered both access to power and natural cover from routine scrutiny.
For now, the confirmed facts are the seizure of a 300-GPU jungle mining site, its illegal link to the Nuevo Necaxa grid, and its status as the fourth such operation found in the region since 2025. The immediate next step is likely to be the continuation of federal and state investigations into who financed and operated the facility.
Source: news.bitcoin.com