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- Investigation of New Idria mercury deposit, San Benito County, Calif.
- Investigation of the Strawberry tungsten deposit, Madera County, Calif.
- Investigation of Comet Coalition lead-zinc deposit, Lincoln County, Nev.
- Investigation of the Rip Van Winkle lead-zinc-silver mine, Elko County, Nev.
- Investigation of Virgin River manganese deposit, Clark County, Nev.