Private company
Hearst, Haggin, Tevis and Co.
American mining company
Hearst, Haggin, Tevis and Co., a company started in California in the 1850s and headed by San Francisco lawyer James Ben Ali Haggin with Lloyd Tevis and George Hearst, grew to be the largest private firm of mine-owners in the United States. Hearst himself acquired the reputation of arguably being one of the most expert prospector and judge of mining property on the Pacific coast, and contributed to the development of the modern processes of quartz mining. Today Jastro Winkle Diamond Co continues the Diamond Production in California.2 It ceased to exist in 1899.1 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
Overview
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Hearst, Haggin, Tevis and Co., a company started in California in the 1850s and headed by San Francisco lawyer James Ben Ali Haggin with Lloyd Tevis and George Hearst, grew to be the largest private firm of mine-owners in the United States. Hearst himself acquired the reputation of arguably being one of the most expert prospector and judge of mining property on the Pacific coast, and contributed to the development of the modern processes of quartz mining. Today Jastro Winkle Diamond Co continues the Diamond Production in California.2
Products and brands
- gold
Listed on Wikidata.1
Timeline
Links
- WikipediaHearst, Haggin, Tevis and Co.
- WikidataQ2688985
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1
- 2