Meet The Mules

Learn and Explore

During the spring, summer, and fall, the National Park Service operates a replica packet boat, The Charles F. Mercer, at Great Falls, Maryland. Mules pull the boat providing an authentic canal experience. The mules live and work at Great Falls so meet them before or after a boat ride.
Photo of Lil
Lil is one hard-working employee.

NPS Photo

Mules and the Canal

Historically mules were the preferred animals to pull canal boats because they were cheaper to purchase than horses and were less prone to illness and injury. Mules had both longer life spans and longer work lives than horses and could pull canal boats for twenty years if they were taken care of properly. They had tougher skin than horses and were less likely to develop harness sores. Additionally, mules were more sure-footed than horses and less likely to trip and injure themselves pulling very heavy loads. Mules also adapted very well to life on a canal boat. They actually lived in the front cabin of the boat, which was a mule stable.

Most mules on the canal historically:

  • Weighed about 1000 pounds
  • Stood about 15 hands tall. One "hand" equals four inches, and is measured from the ground to the point where the neck meets the body.
  • Cost about $125
Historic photo of mules loading onto canal boat.
Mules enjoyed the peace and quiet of their cabins on the boat.

NPS Photo

Perfect Hybrids

"I enjoyed being with the mules. I had a lot of fun with the mules. A mule is intelligent. He has more intelligence than a horse. And good. Gentle. If you treat a mule right, he’ll treat you right."
-Captain Jacob Meyers

Mules were the preferred "engines" of the C&O Canal boat captains because mules are a perfect example of the hybrid principle: crossing two species can produce a third, often better, species more suited to certain conditions. Crossing a female horse (a mare) with a male donkey (a jack) produces a mule.

Just as humans inherit certain characteristics from their parents, so do mules: from the father, the donkey, mules get intelligence, long ears and small hooves — imperative for sure-footedness. From the mother, the horse, mules get a cooperative disposition, endurance and strength: pound for pound, one mule equals about one and a half horsepower.

Photo of Lil and Molly
The mules work eight months a year and rest off-season at a local boarding facility.

NPS Photo

Caring for Mules

"You had to take care of the mules. And the same way with the harness. You had to grease it and oil it. Every time we'd come off a trick [half a day of pulling] we curried [brushed] them down. We fed 'em good. That's how I took interest."
-Lester Mose, Sr.

As we may treat seeing-eye dogs today, so the boatmen treated their mules: not only as workers, but also as pets and companions. Every mule had a name such as Belle, Diamond or Kate. The mule drivers, usually the children, would develop affection for and an awareness of the mules’ idiosyncrasies.

Of course, the drivers always had to be attentive to the possibility of a mule kicking. As J. P. Mose recalls,

"I was kicked by a mule. He was a young mule; we hadn’t had him very long, and I scared him…I’m telling you he caught me right in the hip. He knocked me clean across the towpath. I sort of knocked the ball out of the hip socket…He didn’t mean to do it. I just scared him."

Not all mules, however, fared well on the canal. A few captains worked their mules too long, others whipped them to move their loaded, stationery 120-ton boat out of a lock as fast as possible; many mules became spavined, that is, they developed large, painful inflammations of leg bones and joints. And during the winter, when the captains stabled their mules at farms along the Potomac, not all the farmers in charge of the mules fed the animals properly. As Theodore Lizer recalls,

"[the mules] didn’t know what an ear of corn was till we got them down here and fed them. They didn’t eat nothing but straw and water. It would take a couple of weeks to get them back [properly] on their feet again."

Today, however, the National Park Service ensures the year-round good health and safety of the mules that pull the Charles F. Mercer. The C&O Canal stable of mules have life much easier than the mules of yesteryear: our mules pull at most a twenty-eight ton boat, two hours per day, four days a week, whereas their predecessors would pull a 140-ton boat eight hours a day, seven days a week.


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Last updated: April 29, 2020

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142 W. Potomac St.
Williamsport , MD 21795



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