# Kennecott Utah Copper — History

**Type:** source
**Status:** Useful
**Confidence:** Medium
**Source Type:** Official Website
**URL:** https://www.kennecott.com/history
**Publisher:** Kennecott Utah Copper (Rio Tinto subsidiary)
**Accessed:** 2026-06-25
**Updated:** 2026-06-25

## Summary

The official history page for Kennecott Utah Copper covers the development of the Bingham Canyon Mine from early twentieth-century origins through current operations. It describes the mine's scale, production history, and the company's role as a subsidiary of Rio Tinto.

## Useful Claims

- Bingham Canyon Mine is the largest open-pit copper mine in the world by volume excavated
- The mine has produced more copper than any other mine in history
- Operations began in 1906 under what became the Kennecott brand
- The mine is designated a National Historic Landmark
- Rio Tinto has invested in extending mine life to 2032 and beyond

## Reliability Notes

Corporate history page — self-interested on positive framing of environmental and labor record, but factual on production statistics and chronology. Production and engineering claims are independently corroborated by USGS and mining history sources.

## Related Pages

- [Kennecott Bingham Canyon Mine](bingham-canyon-mine.md)