Washington West

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Gold veins near Great Falls, Maryland

Mining features digitized from Plate 2 of this report. Includes locations of adits, shafts, prospect pits, and trenches.Gold discovered in this area in 1861 was worked sporadically until 1960.

Global Geochemical Database for Critical Minerals in Archived Mine Samples

Chemistry and geologic information for historic ore and ore-related rock samples from mineral deposits in the United States and from archetypal deposits from 27 other countries. Data are provide in Microsoft Access, Microsoft Excel, and CSV formats.

Geochemical data including mercury speciation for surface waters at the abandoned Greenwood Mine area, Prince William Forest Park, Virginia

Measured values of water properties, major- and trace-element concentrations in five sample in and near this abandoned mine.