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Southern Sierras Power's El Centro Substation was the terminus of a transmission line from the Bishop Creek Hydro Plants
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California Electric Power Corp. - Hydro Project photos of Ben Johansen, Southern Sierras Power Co
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California Electric Power Corp. - Hydro Project photos of Ben Johansen, Southern Sierras Power Co. - Mono Lake, Grant Lake, Laws, Locomotive and train of the "Holton Inter-urban Railway" owned by SSP Co.; El Centro Ice plant; SDG&E Company Steam plant; Long Beach Oil Fields.
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California Electric Power Corp. - Southern Sierras Power Co
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Holton Power Co. #38, El Centro Sub
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Holton Power Co. #38, El Centro Sub. - Mr. C. E. Paris, Gen. Supt. standing in front.
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