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The Archive

Every story we have published about the metal.

20 long-form pieces across history, markets, industry, craft, mining and science. Filter by desk, re-sort, or search the full text of every issue.

Terraced benches of a large open-pit gold mine at dusk with haul trucks on the ramp

Mining

Grade, Cut-off and the Arithmetic of an Open Pit

A gold mine is not a hole with gold in it. It is a spreadsheet with a hole attached — and the single number that decides which rock is ore and which rock is waste moves every time the price does.

5 August 2026 · 16 min read

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