Qualla: George Fisher mine

George Fisher mine: Introduction

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit Scientificusrex, CC BY-SA 4.0. For decades, the ore body north of Mount Isa kept its riches behind a wall of water. Geologists knew it was there. As early as 1948 they had probed the ground near a place called Hilton and found tantalizing signs, and the shafts they sank in the 1950s confirmed plenty of ore. But they also confirmed plenty of water, gushing into the workings faster than the pumps of the day could clear it, and again and again the project stalled. It took half a century of patience, better ventilation, and the slow conquest of those flooded depths before the field gave itself up. The result is the George Fisher mine, one of the largest zinc, lead, and silver mines in the world.

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Image: Scientificusrex | CC BY-SA 4.0

George Fisher mine: The Patient Conquest of Hilton

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit Scientificusrex, CC BY-SA 4.0. The story begins with the Hilton ore body, discovered in 1947 by Mount Isa Mines geologist Sydney Carter, twenty kilometers north of the main field. Early exploration ran headlong into trouble. From 1950, shafts sunk to gauge the deposit hit heavy flows of water that drowned the ...

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Image: Scientificusrex | CC BY-SA 4.0

George Fisher mine: A Chairman's Name on the Rock

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit Scientificusrex, CC BY-SA 4.0. In 1981, a similar ore body was found two kilometers north of Hilton, and it would become the heart of the operation that was officially opened in 2000, renamed George Fisher Mine in honor of the former chairman. The mine carries the name of Sir George Fisher, who joined Mount Is...

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Image: Scientificusrex | CC BY-SA 4.0

George Fisher mine: A Kilometer Down

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit Scientificusrex, CC BY-SA 4.0. George Fisher is a deep mine, and the engineering reflects it. Ore is hauled to the surface by a ground-mounted friction hoist that lifts it from more than 1.1 kilometers underground, a vertical journey longer than the height of most of the world's tallest towers, repeated load a...

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Image: Scientificusrex | CC BY-SA 4.0

George Fisher mine: The Future of the Field

Mon, 22 Jun 2026 00:00:00 GMT

Photo credit Mart Moppel from Tartu, Estonia, CC BY-SA 2.0. Today George Fisher belongs to Glencore, inheritor of the Mount Isa empire after its 2013 merger with Xstrata, and it has become central to the region's future. As the older Mount Isa copper operations wind down, the long-life zinc, lead, and silver of George Fisher and neighbori...

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Image: Mart Moppel from Tartu, Estonia | CC BY-SA 2.0