People/engineer, magnate

Daniel C. Jackling

Daniel C. Jackling (1869–1956), engineer, magnate, from United States. Linked to copper, gold.

The lucky break

Worked on Cripple Creek ore milling and then on the low-grade Bingham Canyon ore. With Seeley Mudd and Guggenheim consultants he proved 50,000,000 tons grading 1.93 per cent copper, and the Guggenheim company agreed to finance Utah Copper.1,2,3

Legacy

As manager and later president of Utah Copper he developed Bingham as the first large open pit mine and concentrator complex in the United States. He applied the same scale to the Chino and Ray mines.1,2,3

Story cards

Timeline

  1. 2013Manefay landslides at Bingham Canyon4
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Where next

People

Financed byDaniel GuggenheimHis family company backed the open pit idea at Bingham.1Worked atJoseph R. De LamarJackling's boss sent him to inspect Bingham, then declined to invest.1

Mines

FoundedBingham CanyonHe proved 50 million tons of poor copper ore could pay.1Worked atChinoHe took the Bingham scale to Chino and Ray.1Worked atCripple CreekHe learned ore milling at Cripple Creek before taking on Bingham.1

Events

Led toManefay landslides at Bingham CanyonHis low-grade open pit of 1903 lost 145 Mt of waste rock into its floor in 2013.4

Sources

  1. Hall of Fame: Daniel Jackling Mining Foundation of the Southwest
  2. Wikidata item Q5216714
  3. File pages and licence metadata for portraits (via the Commons imageinfo/extmetadata API) Wikimedia Commons
  4. Bingham Canyon's Manefay Landslides and the Future of the Mine Utah Geological Survey

Pictures on this page: Daniel Guggenheim.jpg, Bain News Service, New York. (Public domain).

From the Prospector Trails mining history dataset: each fact links to the source it was checked against. Figures are as the source gives them, in the money of their day. Not investment advice.

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A Caterpillar 797 haul truck with a worker standing beside a front tyre that is more than twice his heightEquipmentHaul trucksHauling · Open-pit minesA large red crusher inside the steel frame of a crushing plant, with conveyors and walkways around itEquipmentCrushersProcessing · CrushingA large grey ball mill studded with liner bolts in a long mill hallEquipmentBall mills and SAG millsProcessing · GrindingTime machineBingham Canyon from spaceMined since 1903 and still widening.

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Cover photos from Wikimedia Commons: Haul trucks by Lechhabmed, CC BY-SA 4.0; Crushers by photosmith2011, Flickr, CC BY-SA 2.0; Ball mills and SAG mills by photosmith2011, Flickr, CC BY-SA 2.0.