History

The mineral now known as Gilsonite or Asphaltum was discovered in the early 1860's, but it was not until the mid-1880's that Samuel H. Gilson began to promote it as a waterproof coating for wooden pilings, as an insulation for wire cable, and as a unique varnish. Gilson's promotion of the ore was so successful that, in 1888, he and a partner formed the first company to mine and market Gilsonite on a commercial scale. Originally, Gilsonite was sold as "Selects" and "Fines"; the low softening point ore with conchoidal fracture was known as "Selects".

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