The Mustang Horse: History, Temperament, Uses and Care

The Mustang is the iconic wild horse of the American West, or more precisely a feral horse: it descends from the Iberian horses that arrived with the conquistadors in the 16th century. Today its herds roam free on public lands in Nevada, Wyoming and Utah, protected by federal law since 1971. Origins, build, temperament, uses, health, adoption and price: here is what you need to know about this legendary horse.

Where does the Mustang come from? 🐴

The arrival of Spanish horses in the Americas

The Mustang descends from the Spanish horses brought to the Americas in the 16th century by the conquistadors. These horses, mainly Barbs, Andalusians and Sorraias, carried the explorers through their conquest of the New World.

The Spanish relied on these horses for transport, warfare and ranching. Some escaped or were turned loose, forming the first wild populations. Within a few generations, these horses had regained their natural instincts and adapted to the harsh conditions of the Great Plains.

Going feral: how the Mustang became a free-roaming horse

The Spanish horses that turned feral multiplied rapidly. Their numbers soared thanks to:

• The absence of natural predators
• The climate of the American plains, which helped them adapt
• Their ability to survive on scarce resources

Native American tribes, notably the Comanche and Apache, tamed these horses for hunting, warfare and travel. The Mustang became a symbol of freedom and left a deep mark on the continent's history.

In the 19th century, as American settlers pushed west, Mustangs were hunted down or rounded up for ranches and armies. Their numbers plummeted, threatening their very survival.

Protecting and managing wild herds today

In the 20th century, the dwindling number of Mustangs alarmed animal welfare advocates. In 1971, the United States passed the Wild Free-Roaming Horses and Burros Act, which protects the wild horses and burros living on federal public lands.

According to the Bureau of Land Management (BLM), about 73,000 wild horses and burros lived on its lands as of March 1, 2025, mainly in the Western states (Nevada, Wyoming, Utah). Their management relies on:

• Roundups and relocations carried out by the BLM.
• Adoption programmes to prevent overpopulation.
• Protected areas where the horses live without human intervention.

Despite these measures, their status remains fragile, caught between protection and population control to limit their impact on the environment and on agriculture.

What does a Mustang horse look like? 🐎

Average height, weight and proportions

The Mustang has a compact, sturdy build, shaped by centuries of natural selection.

• Height: roughly 13.3 to 15.1 hands (1.40 m to 1.55 m) at the withers
• Weight: 360 to 450 kg (roughly 800 to 1,000 lb)
• Muscular, balanced body: solid bone, a short back and powerful hindquarters
• Hardy legs: strong joints and hard hooves suited to rough terrain

This build gives it agility, stamina and resilience, all essential for survival in the wild.

The most common coat colours

The Mustang comes in a wide range of coat colours, inherited from its Spanish ancestors and from crosses with other horses that escaped from ranches.

The most common ones:

• Bay: the classic coat, brown with a black mane and tail
• Chestnut: a coppery red coat, sometimes with a lighter mane and tail
• Grey: tends to turn whiter with age
• Black: rarer, often deep and uniform
• Dun (yellow dun or grulla): with a dorsal stripe and barring on the legs

Some Mustangs carry primitive markings, such as leg barring and a dark dorsal stripe. These traits hark back to Iberian horses and ancient breeds.

Physical adaptations to life in the wild

The Mustang has evolved to survive in harsh environments. Its main adaptations:

• Exceptionally hard hooves, which reduce the need for hoof care in captivity.
• Natural stamina, allowing it to travel tens of kilometres a day in search of water and food.
• A thrifty metabolism, which helps it withstand periods of food scarcity.
• Keen senses, especially excellent eyesight and constant vigilance against predators.

Its natural evolution has made it a tough, self-reliant horse perfectly suited to the American plains.

Is the Mustang an easy horse to tame? 🏇

Wild instincts and its relationship with humans

The Mustang is wild by nature. It has lived entirely outside domestication for generations, developing a powerful survival instinct.

Around people, it tends to be wary and defensive. It sizes up its surroundings before engaging. Training one takes patience and consistency, and an approach built on trust and respect works far better than force.

Intelligence and ability to learn

The Mustang learns fast. Its intelligence helps it pick up cues quickly, but also to challenge poorly established authority. It will test its rider and responds best to gradual training based on positive reinforcement.

Key learning traits:

• Quick to understand what is expected
• Able to solve problems on its own
• Reacts strongly to an inconsistent rider

A well-trained Mustang becomes a dependable horse, though it always keeps a streak of independence.

Domesticated vs wild Mustang: what are the differences?

A captured and domesticated Mustang keeps some primitive reflexes, but with sound training it becomes an excellent working horse.

What are Mustang horses used for?

1. Endurance and stamina: a horse built for long distances

The Mustang evolved to cover vast territories on minimal resources. Its strong heart, lean muscles and sound tendons let it handle long distances without excessive fatigue.

In endurance riding it can hold its own, even though the Arabian remains the benchmark of the discipline worldwide. Its strength: fast recovery after exertion.

2. Trail and pleasure riding: a reliable companion?

The Mustang makes an ideal trail horse. Sure-footed and smart, it is a reliable partner on varied terrain.

Advantages on the trail:

• Extremely tough hooves, reducing the need for shoeing
• A well-developed survival instinct, which helps it anticipate obstacles
• A steady mind, so it is less prone to panic when the unexpected happens

It copes with extreme climates better than domestic horses and needs less upkeep when kept outdoors.

3. Versatility in dressage and western riding: where are the limits?

The Mustang is used in western riding, particularly ranch work, barrel racing and reining. It excels in disciplines that call for responsiveness and handiness.

In classical dressage, it can lack expressive movement and elegance compared with specialist breeds such as the Thoroughbred or the Lusitano.

Strengths and limitations by discipline:

✔ Fast, agile and full of stamina in western and outdoor riding
✔ Very handy for ranch work
✔ Versatile for pleasure and trail riding
❌ Lacks suppleness and extension for haute école dressage
❌ Less explosive than modern racehorses

The Mustang remains an all-round horse, at ease in several disciplines, but it cannot compete with horses bred for speed or pure dressage.

How long does a Mustang live, and how hardy is it? 🐎

Life expectancy and factors affecting its health

In captivity, the Mustang has a life expectancy of 25 to 30 years, comparable to other domestic horses. Life on the range naturally selects the hardiest individuals, strengthening its resistance to disease and extreme conditions.

Factors affecting its lifespan:

• Lifestyle: a wild Mustang, exposed to predators and food shortages, lives a shorter life than a domesticated one.
• Genetics: natural selection favours the horses with the most stamina.
• Care: in captivity, a suitable diet and regular care extend its life expectancy.

A well-cared-for Mustang can stay active up to the age of 25 as a pleasure horse.

Diet in the wild vs in captivity: what changes?

The wild Mustang feeds only on natural resources suited to its environment.

In the wild:

• Grasses, shrubs and hardy plants
• A poor but steady diet, which limits digestive problems
• Irregular access to water, which demands great adaptability

In captivity:

• Good-quality hay and mineral supplements
• A moderate grain ration, to avoid metabolic imbalances
• Constant access to clean water

Switching too abruptly from one diet to the other can cause colic and digestive upsets.

Common health problems and prevention

The wild Mustang is naturally more resistant to disease than domestic horses, but some conditions still need watching.

Common conditions:

• Internal and external parasites: less frequent in the wild, but more of a problem in captivity.
• Dental problems: natural tooth wear in the wild prevents overgrowth.
• Equine metabolic syndrome (EMS): a higher risk if the diet in captivity is too rich.

Essential prevention:

• Regular deworming and veterinary check-ups
• Monitoring the diet to avoid imbalances
• Daily exercise to keep its metabolism active

A well-managed Mustang stays a hardy horse that needs less care than many other domestic breeds.

Why is the Mustang a legendary horse? 🐴

Its role in American history and warfare

The Mustang has become a symbol of the Great Plains, and it played a major role in the history of the United States.

• Used by Native Americans: tribes such as the Comanche tamed it for hunting and war.
• Indispensable to settlers: it served in the exploration and conquest of the West.
• Enlisted by the US Army: it was used as a military mount until the early 20th century.

Its stamina and toughness made it a horse of choice for long journeys and extreme conditions.

The Mustang in film

The Mustang has inspired many works, reinforcing its image as a free and untameable horse.

Notable works:

• “The Misfits” (1961) by John Huston: Clark Gable and Marilyn Monroe confront the roundup of wild Mustangs in Nevada.
• “Spirit: Stallion of the Cimarron” (2002): an animated film whose hero is a wild Mustang.
• “Hidalgo” (2004) by Joe Johnston: Viggo Mortensen and his Mustang take on an endurance race across the Arabian desert.
• “The Mustang” (2019) by Laure de Clermont-Tonnerre: a Nevada inmate learns to gentle a wild Mustang through a rehabilitation programme.

Its image embodies freedom, strength and independence, values deeply rooted in American culture.

Myth or reality: the legends surrounding the Mustang

Many legends surround the Mustang, some of them exaggerated.

Popular myths:

❌ An untameable horse: in reality, a well-trained Mustang makes an excellent companion.
❌ A pure breed unchanged since the conquistadors: crosses with other horses have shaped its evolution.
❌ A horse faster and stronger than any other: its stamina is exceptional, but it is no match for the Thoroughbred in raw speed.

The real Mustang is a horse built for survival, hardier than most domestic horses, but a far cry from the Hollywood clichés.

Frequently asked questions about the Mustang

Can you adopt a wild Mustang?

How adoption works

In the United States, adopting a wild Mustang is overseen by the Bureau of Land Management (BLM). The agency manages the Mustang herds living on public lands, removing some horses to prevent overpopulation.

Requirements for adopting a Mustang through the BLM:

• Be at least 18 years old and have no conviction for animal abuse.
• Provide a secure corral: at least 400 sq ft (about 37 m²) per horse, roughly 20 × 20 ft (6 m × 6 m), with 6-foot fences (1.80 m) for an ungentled adult.
• Have shelter and permanent access to water.
• Complete a probationary period: the adopter only becomes the legal owner after at least one year of good care, certified by a veterinarian.

Until the title of ownership is issued, the Mustang remains protected by federal law, which is why adoption is so tightly controlled.

How much does a Mustang cost? Adoption price and upkeep

In the United States, adopting a Mustang through the BLM costs very little: adoption fees start at $125, and some horses are sold from $25. These token fees aim to find homes for horses removed from public lands. In Europe, where the Mustang remains rare, its price depends mainly on its age and level of training.

Keeping a Mustang, however, is a much bigger investment.

A domesticated Mustang needs rigorous, consistent training to become a reliable riding horse.

Mistakes to avoid when gentling a Mustang

A wild Mustang has never known human contact. Gentling one takes patience, consistency and respect.

Common training mistakes:
❌ Rushing things: a Mustang cannot be trained like a domestic horse.
❌ Being inconsistent: irregular training slows its progress.
❌ Using harsh methods: its survival instinct makes it wary, and forceful training only deepens its fear.
❌ Underestimating its physical needs: a Mustang needs space and constant movement.

A well-gentled Mustang becomes a reliable horse with great stamina, but its training calls for experience and commitment.