Pack mules, used as lime carriers on the Henry Cowell Ranch, where lime was mined and manufactured. The ranch was "self-supporting in terms of the industries necessary to manufacture, package and distribute the lime. The business not only quarried the limerock on the ranch, it also included a lumbering operation that provided the fuel to fire the lime kilns, a cooperage that made the barrels in which the lime was shipped, a drayage operation that brought the barrels of lime to the company warehouse and wharf, to be shipped on company schooners to San Francisco." Laurie MacDougall in " Henry Cowell and His Family, 1819--1955."

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