The world's largest gold and copper mine sits atop a remote Indonesian mountain peak.

The world's largest gold and copper mine sits atop a remote Indonesian mountain peak.
Image: Intellect (generated)

In short: High in the mountains of Central Papua, the Grasberg mine operates as a massive industrial feat. It produces staggering quantities of copper, gold, and silver, yet its history is defined by environmental controversy, labor unrest, and complex geopolitical ties between American corporations, the Indonesian government, and local security forces.

The Grasberg mine, located near Puncak Jaya in Indonesia's Mimika Regency, traces its origins to a 1936 expedition by Dutch geologist Jean Jacques Dozy. While scaling Mount Carstensz, Dozy identified peculiar mineralized rock, later filing a report on the Ertsberg, or ore mountain. The site remained largely untouched until 1959, when Freeport Minerals executive Forbes Wilson recognized its immense potential. By 1973, the mine was operational, representing a massive capital investment in one of the world's most remote regions.

Today, the operation is a joint venture between Freeport-McMoRan and the Indonesian government, which secured a 51.23% stake in 2018. The site utilizes both open-pit and underground methods, including the Grasberg Block Cave and Deep Mill Level Zone. In 2023 alone, the mine produced 680,000 tonnes of copper and 52.9 tonnes of gold. This output is transported via a 166 km pipeline to the port of Amamapare, a logistical necessity for a facility built 4,100 metres above sea level.

The mine's environmental and social footprint remains a subject of intense scrutiny. Freeport estimates the project will generate six billion tons of waste, with tailings causing significant degradation to the Aikwa riverine system. The facility has faced numerous fatal accidents, including a 2013 roof collapse that killed 28 workers and a 2025 landslide that claimed seven lives. Furthermore, the mine has been a flashpoint for regional conflict, with security concerns leading to violent ambushes and allegations of improper payments to military units, resulting in the exclusion of Freeport from the Government Pension Fund of Norway's investment portfolio.

Opens the Intellect+ feed with this card first. Swipe up for the next one.

Sources

To cite this card, link to https://intellectplus.co.uk/app/culture-grasberg-mine.

How we source, check and correct cards: Editorial standards.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?

Related

Finding something worth knowing…