(I) The Harmony Borax Works hauled borax out of the valley and across 250 kilometres of desert to Mojave, California, the nearest railway station. (II) Borax is used primarily for cleaning, but has a number of other industrial uses. (III) To accomplish this, they used wagons that were 5 metres high and weighed 4 tons when empty and nearly 15 tons when loaded. (IV) Each two-wagon train was pulled by a team of 20 mules, which stretched out over 30 metres in front of it. (V) It was an incredible sight, and not surprisingly, the 20 mule teams became the product's trademark.