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Oil Seeps in Northern California
July 2001 by Edgar B. Heylmun, PhD
Indians used asphalt from oil seeps in California for caulking boats and other objects long before the white man arrived. Spaniards noted seeps as early as 1542, and the Portola expedition in 1769 used oil for wagon axles and as a fuel. Spaniards also used crude stills for obtaining lamp oil for use in the missions.Looking Back
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
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At first we decided to see what the flat by our camp would produce where the old-timers had worked it with their Pelton wheel and dragline buckets.
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