Between 1883 and 1889, the iconic 20-mule teams became the backbone of the borax industry in Death Valley, hauling massive loads across some of the harshest terrain in North America. These teams transported up to 10 short tons of borax ore per journey, covering a grueling 165-mile route to the Mojave railhead in California.
Their wagons were engineering marvels, each empty one weighed 7,800 pounds and stood on seven-foot-tall wheels with iron rims. When fully loaded with ore and water, the mule train stretched over 180 feet and tipped the scales at more than 73,000 pounds, including a dedicated water wagon carrying 1,200 gallons for the animals.
The operation required exceptional teamwork and precision. A seasoned teamster controlled the mules using a long “jerk line” and a whip, while a swamper managed the brakes and kept the team steady on steep or uneven ground. Mules were chosen for their endurance and smarts, while horses worked at the back as wheelers. The teams covered an average of 17 miles per day, stopping midday for meals and water without unharnessing, and resting at night in camps with corrals, feed, and basic shelters. On particularly dry legs of the route, an extra water wagon would sometimes follow behind to keep the animals hydrated.
In just six years, these mule teams hauled more than 20 million pounds of borax and became legendary for their toughness and efficiency. Immortalized by writers like Remi Nadeau, their story is a powerful reminder of human ingenuity and endurance in the face of extreme conditions. More than just a transport system, the 20-mule teams symbolize the grit and determination that helped shape the American West.






























