The Last Muleteers of Aconcagua

• Chapter 1: The Shadow of the Iron Horse
• Chapter 2: Gathering the Herd
• Chapter 3: The Valley of Mendoza
• Chapter 4: Whispers in the Venta
• Chapter 5: The Old Muleteer’s Oath
• Chapter 6: Into the Foothills
• Chapter 7: The Weight of Cargo
• Chapter 8: Tracks Across the Trail
• Chapter 9: The Ascent to Uspallata
• Chapter 10: River of Cold Stones
• Chapter 11: Campfire Confessions
• Chapter 12: The Phantom Ridge
• Chapter 13: High Altitude Fever
• Chapter 14: A Mule Lost to the Abyss
• Chapter 15: The Sentinel of Stone
• Chapter 16: The White Wind Rises
• Chapter 17: Shelter at Cuevas
• Chapter 18: Frozen Breath
• Chapter 19: The Summit Pass
• Chapter 20: Under Aconcagua’s Gaze
• Chapter 21: The Descent Begins
• Chapter 22: Broken Reins
• Chapter 23: The Whistle in the Distance
• Chapter 24: The Valley of the Chileans
• Chapter 25: The Last Unloading
• Chapter 26: Sunset Over the Andes

The cold that seeped out of the Andes every dawn had a way of finding the exact seams in a man’s boots. Mateo Cruz sat on an upturned wooden wine crate behind the livery stables, his leather-wrapped hands cupped around a cracked clay gourd. The yerba mate was bitter, dark, and hot enough to scald his tongue, which was precisely how he liked it. Across the dirt yard, his old mare, a grey named La Bruja, blew a thin plume of steam from her nostrils and pawed lazily at the frosted earth.

Beyond the stables, the eastern sky was turning the color of a bruised plum, casting the jagged skyline of the cordillera into sharp relief. To the west, the massive wall of granite and ice stood silent, towering over the dusty plains of Mendoza like a row of white-capped sentries. Mateo had crossed those mountains more times than he had teeth left in his mouth. He knew every turn of the trail, every deceptive snowdrift, every dried creek bed, and every place where a skittish mule might lose its footing and plummet three hundred yards into a rocky gorge.

He spat into the dirt and took another sip of the bitter tea. His knees aches—a reliable barometer that promised a dry wind by noon and snow in the high passes before the week was out. At sixty-four, his body was a map of old accidents: a collarbone that had knitted crooked after a bad fall in the valley of Uspallata, a left thumb flattened by a rogue pack crate, and skin tanned to the texture of a dried saddle flap by decades of sun, wind, and mountain glare.

A sharp, metallic screech sliced through the early morning quiet, followed by the heavy, rhythmic chugging of a steam engine. La Bruja twitched her ears, but Mateo didn't move his head. He merely shifted his gaze toward the lower edge of the valley, where the newly laid steel tracks cut a dark, straight line across the yellowing scrubland.

The iron horse had arrived in Mendoza.

For two years now, the crews had been working furiously, cutting through the dry earth, laying wooden ties, and driving heavy iron spikes into the ground. They said the railroad would eventually crawl right up into the mountains, tunneling through the rock, defying the sheer walls of granite that had kept Argentina and Chile separated by weeks of hard travel since the beginning of time. The local newspapers called it a miracle of modern engineering. They wrote long, glowing articles about steam, progress, and the inevitable triumph of human intellect over the wild wilderness of the Andes.

To Mateo, it sounded like a funeral bell.

A young man stepped out from the darkness of the barn, rubbing his eyes and yawning broadly. This was Benito, Mateo’s nephew, a lad of nineteen with bright eyes and a quick smile, though his hands were still too soft for hard mountain work. Benito adjusted his poncho against the morning chill and walked over to where Mateo was sitting.

"The steam whistle blew early today, Tío," Benito said, nodding toward the plume of black smoke rising against the pink horizon. "They say the construction train brought another load of rails from the coast last night."

"Rails don't walk," Mateo said quietly, passing the gourd to the boy. "And they don't eat grass. That's about the only good thing I can say for them."

Benito took a long draw through the silver bombilla and handed the gourd back. "The men at the tavern were saying the tracks will reach the foothills by summer. They're talking about building a bridge over the Mendoza River that can hold a whole train filled with wheat and copper."

"Men at taverns talk because their mouths aren't busy carrying water," Mateo grunted. He stood up, his joints popping like dry twigs, and set the gourd down on the crate. "Let them build their bridge. The mountain hasn't seen an iron engine try to scale the Pass of the Incas yet. Granite doesn't yield to hot water and smoke just because a man in a top hat commands it to."

Yet even as he spoke the words, Mateo knew the bravado was hollow. He had seen the steam engines at the railhead near the town center. They were huge, iron beasts, black as coal dust, coughing fire and cinders into the sky. They didn't tire. They didn't get sick from eating bad shrubs along the riverbank, nor did they blind themselves looking at the glare of high-altitude snowfields. They simply consumed coal and spat out speed.

For centuries, the arrieros—the muleteers—had been the living blood vessels of the continent. Everything that moved between the Atlantic plains and the Pacific ports went on the backs of mules. Wine from the Mendoza valleys, Chilean copper, silver from the mines, tallow, hides, dry textiles, grain, and news had all been packed into heavy leather bales and strapped to the flanks of long, snaking herds. It was a trade passed down from father to son, learned through blistered feet, frozen nights, and the subtle language of whistles, calls, and leather reins.

Mateo walked over to La Bruja and smoothed down the coarse hair on her shoulder. The mare leaned her heavy head against his chest, smelling faintly of sweet hay and old leather.

"She knows," Mateo murmured.

"Knows what, Tío?" Benito asked, sweeping a pile of loose straw away from the stable door with a broom of bound twigs.

"She knows the valley is getting noisy. A mule likes quiet. It likes the sound of its own bells and the wind in the scrub oak. It doesn't like that sulfur smell blowing off the tracks."

Benito paused in his sweeping, looking thoughtfully toward the smoke column rising in the distance. "My cousin Tomas took a job with the railway last month. He’s driving a team of draft horses for the earthworks team. He says they pay four pesos a day, cash, every Saturday evening. He says it’s better than sleeping on frozen rocks for three weeks straight."

Mateo looked at his nephew, noting the slight touch of envy in the boy's voice. He couldn't blame Benito. The life of an arriero was hard, lonely, and increasingly unprofitable. Merchants who used to line up at Mateo's door weeks in advance to book a thirty-mule pack train were now delaying their shipments, waiting to see if the railway would push further into the foothills before the winter snows closed the upper passes.

"Tomas always preferred soft soil to high rock," Mateo said, without malice. "There is no shame in taking an easy peso. But a horse pulling a dirt wagon on the flat lands will never see the sun rise over the peak of Aconcagua. He’ll never know what it feels like to stand at the top of the world where the sky is so thin you can taste the stars."

"You can't buy flour with the sunset, Tío," Benito said softly.

Mateo chuckled, a dry, rustling sound that ended in a brief cough. "No. You can't. But you can buy flour with a load of Chilean silver, provided you get it across the summit before the storm hits. Come on. Help me check the saddles. If Don Esteban wants his cargo moved before the high tracks close, we have work to do."

They spent the next hour working in silence inside the dim, fragrant barn. The smell of cedar, horse sweat, cured leather, and lanolin filled the air. Mateo ran his hands along every inch of the leather straps, checking for fraying or rot. In the high mountains, a snapped cinch was not merely an inconvenience; it meant a five-hundred-pound wooden chest tumbling down an incline, dragging a mule—and perhaps the man leading it—into eternity.

Every saddle, every wooden frame, every cinch strap had its story. There was the heavy pack-saddle that had survived the hail storm of '78, scarred by lightning that had struck a rock fifty paces away. There were the brass bells, polished until they gleamed like dull gold, which belonged to the madrina—the lead mare whose steady rhythm kept the whole herd moving as one cohesive unit through the dark and fog.

Around mid-morning, the heavy wooden gates of the yard creaked open, and a man in a dark tailored coat and a broad-brimmed felt hat stepped inside. He picked his way carefully across the damp dirt, holding the skirts of his coat away from the mud.

Don Esteban was one of Mendoza's wealthiest merchants, a man whose family had grown rich exporting the valley’s rich, dark wines and importing manufactured goods from Europe that came through the Chilean ports of Valparaíso.

"Good morning, Mateo," the merchant called out, stopping a respectful distance from a heap of manure.

"Don Esteban," Mateo replied, stepping out of the shadows with a curved leather needle in his hand. He dusted off his trousers. "You look like a man with a heavy pocket and a light mind."

Esteban smiled faintly, though his eyes remained serious. He pulled a cigar from his waistcoat, bit off the end, and lit it with a wooden match that smelled sharply of sulfur. "I have a proposition for you, old friend. And perhaps a warning."

"I'll take the proposition first," Mateo said. "Warnings are usually free, which means they aren't worth much."

adjusted his hat. "The railway company has laid tracks as far as the mouth of the canyon near Cacheuta. They are running flatcars carrying timber and iron to the railhead every morning. By next year, they claim they will have steam engines hauling freight halfway up the valley."

"They've been claiming that since my hair was black," Mateo said, patting La Bruja's neck. "The mountain doesn't care about their claims."

"This time it's different," Esteban said, his tone softening. "They have investors from London and Buenos Aires. Thousands of men are working with dynamite and steam drills. They are blasting tunnels right through the red granite. But... the high tunnels are not ready. They won't be ready for years. And I have eighty crates of machinery and dry goods sitting in a warehouse in Chile that need to be in Mendoza before the snows seal the pass, and forty barrels of high-grade spirits that must reach Santiago before the holiday festival."

Mateo narrowed his eyes. "Forty barrels of liquor and eighty crates of ironwork. That's a heavy load for a late-season crossing. The winds on the summit are already turning white."

"That's why I came to you," Esteban said, leaning forward slightly. "The younger arrieros are afraid of the late snow. They are taking jobs with the railroad, clearing rock for daily wages. They don't have the stomach for the high passes when the sky turns gray. But you... you know the mountain better than any man alive."

"I know when the mountain wants to kill you," Mateo corrected him. "That's why I'm still alive to talk to you."

Esteban pulled a thick leather purse from his coat and let it weigh down his palm. The metal coins inside clicked together with a dull, rich sound. "Double the standard rate, Mateo. Half now, half when the cargo is delivered to my agent in Los Andes on the Chilean side."

Mateo looked at the purse, then looked past Esteban's shoulder toward the smoke rising from the railway yards in the distance. He could hear the faint, muffled thud of a distant dynamite blast echoing down from the mouth of the canyon. They were tearing into the ancient stone, scarifying the earth to lay down a bed of flat gravel and iron rails.

He knew what this offer was. It wasn't just a contract; it was a final curtain. Once the railway reached the upper valleys, once the iron engines began roaring through the blasted granite tunnels, no merchant would ever pay double to send goods on the back of a slow, stubborn mule. The bells of the pack train would fade away, replaced by the shrill whistle of the steam boiler.

This would be the last great herd to cross the roof of the continent before the old world was swallowed whole by steel and steam.

"How many mules?" Mateo asked quietly.

"Fifty," Esteban replied. "Maybe sixty if you can handle them. The load is heavy, and time is short. The clouds are already gathering over the peaks."

Mateo looked down at his rough, scarred hands. He felt the cold ache in his knees, the weight of his sixty-four years, and the long, quiet ghost of his trade lingering in the dry air of the barn.

"Gather the goods at the storehouse tomorrow at dawn," Mateo said, his voice flat and firm as granite. "Tell your agents on the Chilean side to have their receipts ready. If the mountain gives us ten days of grace, the cargo will arrive intact."

Esteban smiled, clearly relieved, and handed over the heavy purse. "I knew I could count on you, Mateo. You're a monument to the old ways."

"Monuments are made of dead stone, Don Esteban," Mateo said, turning his back on the merchant and picking up his leather needle once more. "I'm still breathing."

As the merchant walked back toward the street, his boots clicking smartly on the dirt, Benito stepped out from behind the hayrick, his eyes wide as he looked at the leather purse sitting on the workbench.

"Fifty mules?" Benito whispered. "Tío, that's more than we've taken over the pass in five years. We don't even have that many animals in the yard."

"Then we'll go out to the pastures and buy them, rent them, or borrow them," Mateo said, pulling a long thread through a thick leather strap with a sharp jerk. "Call your brothers. Tell them to clean their boots and check their reins. We have a mountain to cross."

Mateo walked out to the edge of the corral and stood leaning against the wooden fence, staring west. The morning sun had finally cleared the eastern hills, striking the majestic, snow-covered pyramid of Aconcagua. The mountain burned with a brilliant, blinding pink light against the deep blue sky, indifferent to the tiny men below who were busily driving iron pins into its toes.

Down in the valley, the steam engine let out another long, piercing shriek that echoed off the foothills like the cry of a strange, hungry beast. Mateo listened to it, his face unreadable, then reached into his pocket, took out a small piece of dried tobacco, and began to chew. The iron horse was coming, but the old paths were still there, winding up through the sky, where no engine had ever dared to tread.

The livestock market on the northern fringe of Mendoza smelled of trampled alfalfa, burnt suet, and the sour dust of two thousand animals crammed into wooden pens. By second light, the sun had not yet cleared the low willow trees along the irrigation canals, but the air was already thick with the shouts of dealers, the sharp crack of rawhide whips, and the restless shifting of hooves.

Mateo walked down the central aisle between the corrals, his wooden-soled boots sinking into the dry manure. Benito followed a half-step behind, carrying a coil of stout hemp rope over one shoulder and a greasy leather ledger book that Don Esteban had insisted they keep. Mateo had no use for ledgers—a man who couldn't keep fifty mules in his head had no business leading them across a mountain—but he let the boy carry it to make him feel useful.

"A flatland mule is a soft thing, Benito," Mateo said, stopping before a pen filled with large, glossy brown animals brought down from the pampa. "Look at those legs. Long like a reed. High in the hip. Big ears like palm leaves. A man sees a big mule like that and thinks: there is a beast that can carry two heavy boxes of iron. But bring that same mule up to six thousand feet where the oxygen is thin and the path is four inches wider than a man's shoe, and its knees will turn to lard."

Benito looked over the wooden rail at the animals. "They look strong enough to pull a house, Tío."

"They're strong enough to pull a plow through wet silt," Mateo grunted. "And that is where they belong. On the mountain, you don't want a draft horse's bastard. You want a small, thick-necked beast with a chest like an anvil and hooves like black flint. You want an animal that looks at a thirty-degree slope of loose slate and doesn't lose its lunch."

He moved further down the line toward the smaller pens near the back, where the mountain stockmen from the upper valleys brought their animals to sell before winter set in. Here the mules were scruffier, their coats uncombed and matted with cockleburs, their ribs showing slightly beneath dusty hides. But their legs were short and dense, their joints tight, and their small, oval hooves were as hard as iron plates.

A man sitting on a overturned wine cask leaned back against the fence, chewing on a stalk of dry grass. He wore a broad wool poncho stained with tallow and a battered leather hat pulled low over a weathered face that looked as though it had been carved out of an old fence post with a dull knife.

"Looking for work stock or meat, Mateo?" the man called out, his voice sounding like two dry river stones grinding together.

"I'm looking for twenty good beasts, Ciriaco," Mateo replied, resting his forearms on the top rail. "Not the old crocks you usually try to unload on the valley grape-growers."

Ciriaco spat a dark stream of tobacco juice onto the boots of a passing goat-trader. "I have fifteen head from the Uspallata high pastures. Hardened on wild thyme and granite. They could walk up the side of a church without missing a step."

"They look like they've been eating gravel and sleeping in a blizzard," Mateo said, stepping into the pen without waiting for an invitation.

The mules shuffled away from him in a tight circle, their dark eyes watching his every move. Mateo didn't chase them. He stood still in the center of the corral, letting them get used to his smell. Slowly, he reached out and took hold of a dark bay mule by its halter, running his calloused hand down its throat, over its shoulders, and along its spine. He pressed hard along the spine with his thumb. The animal didn't flinch or drop its back—a sign that the muscles were sound and free of deep saddle sores.

He lifted the beast's off-side hoof, inspecting the frog and the thick wall of the horn. "No cracks. But she’s missing a shoe on the hind leg."

"She lost it in the red creek three days ago," Ciriaco said, standing up and shuffling over. "Four years old. Wind-broken? No. Blind? Not a drop. She’ll carry two hundred pounds from here to Valparaíso and ask for nothing but a handful of dry scrub at the end of the day."

"She's three years old at most, her teeth tell the truth even if you don't," Mateo corrected calmly, prying open the mule's lips to inspect the incisors. "And she's skittish in the ears. Someone hit her with a heavy stick."

"Eighty pesos," Ciriaco said, ignoring the critique.

"Forty-five," Mateo said. "And you throw in the gray with the notched ear."

"Forty-five? You're robbing my children's mouths, Mateo! That gray is the best pack mule in the valley. Sixty-five for the bay, fifty for the gray."

They argued for twenty minutes with the quiet, methodical cadence of men who had played this game fifty times before. Benito watched in silence, trying to note down the details in his crisp ledger. In the end, Mateo agreed to take nine mules from Ciriaco’s pen for fifty-two pesos a head, provided Ciriaco delivered them to Mateo’s yard by noon with fresh shoes on their hind feet.

"Where are you taking fifty head of stock this late in the season?" Ciriaco asked, as Mateo counted out the silver coins from Don Esteban's leather purse into the stockman’s knotty hand. "The sky over the Sentinel is already turning that gray color that means ice."

"To the Chilean side," Mateo said, pocketing the purse. "Before the ice closes the pass."

Ciriaco shook his head and pocketed the silver. "You're a fool, old man. The rail company is hiring men to drive supply wagons down in the valley for five pesos a day. No cold nights, no broken legs, and a warm cook-tent every evening."

"And a boss standing over you with a pocket watch telling you when to drop your trousers," Mateo spat. "Keep your rail jobs, Ciriaco. Just make sure those mules are at my yard by noon."

Leaving Ciriaco’s pens, Mateo and Benito worked their way through two more yards, picking three animals here, four there. Mateo was ruthless in his inspection. He rejected any animal with cloudy eyes, weak knees, or soft, spread hooves. He passed on a fine-looking black mule because its nostrils were too narrow—a beast that couldn't take in broad gulps of air would drop like a stone at twelve thousand feet when the mountain altitude began to squeeze a lung.

By mid-morning, they had bought twenty-four mules, but they still lacked half the herd they needed to carry Don Esteban’s eighty crates and forty heavy kegs.

"We won't find fifty clean mules in the city market, Tío," Benito said, wiping sweat from his forehead with the sleeve of his shirt. "Word has spread about the railroad. Every small rancher is keeping his stock to rent to the construction crews."

"Then we go to the men who don't care for the city or its tracks," Mateo said. "Come on. We have to see El Tuerto."

They rode their horses out of the city center, leaving behind the muddy avenues and the rising clatter of the ironworks near the terminal. They headed north toward the dusty village of Las Heras, where the land tilted slightly toward the mountains and the vineyards gave way to dry scrub oak, cactus, and rocky arroyos.

At the edge of the village, tucked against a crumbling adobe wall, sat a small, windowless tavern with a thatched roof made of river reeds. Three lean horses were tied to a worn hitching post out front, their heads hanging low in the shade of a dusty pepper tree.

Mateo pushed open the low wooden door. The tavern smelled of spilt cheap wine, tobacco smoke, and stale fried fat. In the dark interior, a few men sat at heavy timber tables, playing cards with greasy greasy baraja decks.

In the corner sat a man with a face like a dried walnut. A thick leather patch covered his left eye socket, while his right eye—bright, small, and dark as a beetle—tracked Mateo from the moment he crossed the threshold. This was Joaquín, known throughout the province as El Tuerto—The One-Eyed. He had ridden the mountain trails with Mateo forty years ago when they were both teenagers carrying Chilean brandy across the high passes in defiance of the customs guards.

"Mateo," the old man growled, setting down a earthenware cup of red wine. "I thought you were dead. Or worse, working for the steam company."

"I'm not dead, and I don't work for men who smell like coal smoke," Mateo said, sliding onto the bench across from him. Benito remained standing near the door, his eyes adjusting to the dim room. "I need stock, Joaquín. Good stock. And I need a hand who knows how to hold a pack line together when the wind comes up from the south."

El Tuerto grunted, taking a slow sip from his cup. "Stock is thin. The English company bought eighty head of horses and mules last month to haul dynamite crates up the canyon. They’re paying real silver, too."

"They're paying for beasts that will break their knees on wet ties," Mateo said. "I have a contract from Esteban. Fifty mules. Cross the border before the pass freezes."

El Tuerto let out a low, dry laugh that sounded like a saw cutting through pine. "Esteban is a greedy dog. He wants to beat the winter tariffs. And you're old enough to know better, Mateo. The snow is sitting low on the ridge this morning. Look up at the pass—the clouds are thick as fleece."

"I know the clouds," Mateo said. "And I know you have twelve mules grazing in the high arroyo near your brother’s farm. Real mountain stock. The kind that know how to find grass under six inches of crust."

El Tuerto leaned forward, his single good eye narrowing. "Those are my winter stock. If I let you take them over the pass now, half of them might not come back. The summit in late April is no place for an old man or a soft boy." He glanced briefly at Benito, who straightened his shoulders and tried to look broader than he was.

"I’ll pay twenty pesos a head rent for the crossing," Mateo said, laying two thick silver duros on the stained wood of the table. "And I want you with me as second capo. Double the old daily wage."

The tavern went quiet for a moment. A fly buzzed lazily against the small window hole. The card players in the corner paused, listening in on the deal.

El Tuerto looked down at the silver coins resting on the table. He reached out with a thick, scarred index finger and slid one of the coins toward himself. "My knees are shot, Mateo. The cold on the ridge makes my hip feel like it's filled with crushed glass."

"You can ride La Bruja when the flat ground turns to rock," Mateo offered. "She’s smooth as a pacing pony."

El Tuerto spit on the dirt floor, then picked up the coins and dropped them into his leather pouch. "My brother’s boy, Santos, will come too. He’s sixteen, but he can throw a diamond hitch fast enough to tie a ghost to a post. That gives us twelve mules, three men, and one boy who looks like he’s never missed a bowl of corn soup."

Benito flushed, but Mateo slapped the table with his palm. "Good. Have the animals at the main corral by three o'clock. We need to gear every beast before dark."

By mid-afternoon, Mateo’s livery yard had transformed from a quiet dusty square into a swirling vortex of noise, dust, and stubborn, stubborn muscle.

Fifty-two mules were crowded into the main pens. They were bay, gray, sorrel, black, and speckled; some were calm and standing with their heads down, while others were squealing, kicking at the fence posts, and trying to nip at their neighbors' ears. The smell of hot horse manure, bitter sweat, and wet leather rose in thick waves under the afternoon sun.

"They're too restless!" Benito yelled over the din as a large brown mule backed into the fence, sending a shower of dry wood splinters across the dirt. "They'll kick each other to pieces before we even cross the Mendoza River!"

"They don't know each other yet," Mateo said calmly, standing on the top bar of the corral wall with a long leather whip coiled in his hand. He hadn't used the whip to strike an animal in twenty years; he used it to pop the air with a loud crack that sounded like a rifle shot whenever a beast tried to crowd its neighbor. "Fifty strange mules in one pen is just fifty small wars waiting to happen. What they need is a mother."

He turned toward the small side stable where Benito had tied a lean, bright chestnut mare with a white blaze on her nose and four white stockings. Around her neck hung a wide leather collar with a heavy, bell-shaped bronze casting that gave off a deep, melodious chime with every step she took.

This was La Madrina—the godmother.

Mateo unhooked the gate to the mare's stall and led her out into the main yard. The chestnut mare walked with an easy, indifferent grace, completely unbothered by the chaos around her. As she stepped toward the big pen, the heavy bronze bell rang out—Clang-dell... Clang-dell...

The effect on the frantic mules was immediate.

The squealing stopped. The kicking ceased. Heads snapped up across the corral. Long ears rotated forward like fifty dark wind vanes catching the same breeze. Every pair of big, dark eyes locked onto the small chestnut mare as she walked along the outside of the fence.

"A horse is a foolish animal," Mateo said to Benito, jumping down from the fence with a dry creak of his knees. "And a mule is twice as smart as a horse, but it knows it has no mother of its own. It's a hybrid, a creature made by man's hand. So it looks for a guide. It looks for a mare with a bell. Where that bell goes, every single one of those mules will follow—into a river, through a fire, or up a ice wall."

Mateo opened the main gate. The madrina stepped slowly inside the corral, her bronze bell chiming softly. The fifty mules formed an orderly line behind her, nudging each other gently to get closer to her flanks, sniffing at her tail with small, quiet huffs of breath. The high-strung tension that had filled the yard evaporated into the afternoon dust.

"Now," Mateo said, leaning his shoulder against the post. "The animals are ready to follow. Now we see if we have enough gear to strap eighty crates to their backs without cutting them in two."

The rest of the day was brutal, back-breaking work.

Gathering the animals was only half the battle; the gear was what kept a herd alive. In the back of Mateo’s barn lay stacks of aparejos—the heavy, straw-stuffed leather pack saddles used by the mountain muleteers for generations. Unlike a riding saddle, an aparejo had no wooden tree. It was a thick leather pad filled with dried mountain grass, hand-molded to fit the curve of a mule's back and designed to distribute three hundred pounds of cargo across the ribs rather than the delicate spine.

Mateo, El Tuerto, Benito, and young Santos worked under the shade of the barn overhang, inspecting every piece of equipment.

Santos was a lean, dark-skinned boy with quick hands and a wide mouth that was usually open in a song or a joke. He sat on a pile of raw sheepskins, a small iron knife in his hand, trimming frayed leather straps and rubbing mutton tallow into dried cinches.

"This cinch is rotten, Tío Mateo," Santos said, holding up a band of woven horsehair that had split down the center. "Pull this tight on a heavy load near the summit, and your crate goes down the mountain and takes the mule with it."

"Throw it in the trash pile," Mateo ordered. "Never use a patched cinch on a pack load. Better to leave a crate behind than to trust a rotten strap."

They went through the piles with relentless care:

• Fifty-two aparejos, each checked for lumpy stuffing or dry-rot in the leather.
• One hundred and four caronas—thick wool felt pads that sat directly against the mule's hide to absorb sweat and prevent saddle galls.
• Fifty pairs of heavy rawhide ropes, each thirty feet long, soaked in grease so they wouldn't snap when the cold mountain air froze them stiff as iron wire.
• Over two hundred iron horseshoes, small and narrow, along with six hundred square-headed iron nails stored in canvas bags.

Benito worked alongside his uncle, his hands already raw from pulling heavy leather straps through brass buckles. He looked at the massive pile of gear stacked against the barn wall, then looked out at the quiet mules grazing on loose hay in the yard.

"It takes a hundred pieces of leather just to keep one mule moving," Benito murmured, rubbing his bruised palms.

"It takes a hundred pieces of leather and four men who don't care if they ever sleep in a real bed again," El Tuerto said, stepping out of the shadows with a heavy wooden mallet. He slammed the mallet down on a crooked horseshoe, straightening the cold iron with three precise blows. "A mule is just a tool, boy. Like an axe or a spade. It’s only as good as the man holding the leather."

"A mule isn't a tool," Mateo disagreed quietly, leaning over a wooden bench to stitch a torn seam in an aparejo using a thick waxed thread and a curved needle. "A spade doesn't care if you drop it in the mud. A mule remembers if you treated it fair when it was tired. Cross the peak in a blizzard with a tool, and you die. Cross it with a herd that trusts the bell, and you might just make it down the Chilean side."

As the sun began to dip behind the sharp, jagged crests of the mountains to the west, the temperature in the yard plummeted instantly. The warm valley breeze died away, replaced by the cool, sharp downhill draft that flowed straight off the high snowfields.

The long shadows of the poplars stretched across the dirt yard, pointing like thin black fingers back toward the city and the flat plains to the east. From the distant railhead near the river, the sharp, metallic whistle of a steam engine screamed once more, a lonely, industrial sound that echoed off the dry foothills before dying out in the cold twilight.

In Mateo's yard, the only answer was the slow, steady clang-dell... clang-dell... of the madrina's bell as she shifted her weight near the hay trough, surrounded by fifty quiet, waiting shadows.

Mateo pulled the last stitch tight through the heavy leather, bit the thread off with his front teeth, and stood up. His spine cracked like a dry pine branch, and he stretched his arms high above his head.

"We have the stock," Mateo said, looking around at the three men standing in the dim light of the barn. "We have the leather. Tomorrow at first light, we go to Don Esteban’s warehouse and load the iron."

"And if the clouds bring snow tonight?" Benito asked, looking nervously up at the darkened silhouette of the high peaks, where the stars were beginning to appear like cold sparks against a slate sky.

Mateo looked west, staring straight at the dark, looming bulk of Aconcagua, invisible now except for the vast, starless space it occupied against the night sky.

"If it snows tonight, we put on our heavy ponchos," Mateo said. "The herd is gathered. There's no turning back now."