During the 1880s, twenty mule teams were used to haul borax from Harmony Borax Works to the railroads in Mohave, California. The teams could carry loads of 36 1/2 tons and completed the 165-mile trip in 10 days. This feat was impressive but short-lived, as in 1888 the wagons and mule teams made their final journey out of Death Valley. The postcard features a photo taken by Warren Hill and was produced by Dexter Press, Inc. on May 21, 1969.
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