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San Juan
,
Argentina
Ullum Valley
Sun Sand Dam
Imagine a giant battery of water powering a thirsty vineyard. That is basically this place. Dominated by a massive reservoir, it creates a unique microclimate where intense heat meets cooling breezes, perfect for ripening reds.
Imagine a giant battery of water powering a thirsty vineyard. That is basically this place. Dominated by a massive reservoir, it creates a unique microclimate where intense heat meets cooling breezes, perfect for ripening reds.
Imagine a giant battery of water powering a thirsty vineyard. That is basically this place. Dominated by a massive reservoir, it creates a unique microclimate where intense heat meets cooling breezes, perfect for ripening reds.
LEADERS
Taste profile
Jammy Fruit
Bold Reds
Soft Tannins
You might expect these wines to punch you in the throat with alcohol, but the nearby water chills things out. Malbec here gets super jammy and lush, tasting like dark plums exploded in your mouth. Cabernet Sauvignon brings spicy peppers to the party, while Bonarda offers a fruity kick that feels like a warm hug. It is big, bold, but surprisingly refreshing.
You might expect these wines to punch you in the throat with alcohol, but the nearby water chills things out. Malbec here gets super jammy and lush, tasting like dark plums exploded in your mouth. Cabernet Sauvignon brings spicy peppers to the party, while Bonarda offers a fruity kick that feels like a warm hug. It is big, bold, but surprisingly refreshing.
You might expect these wines to punch you in the throat with alcohol, but the nearby water chills things out. Malbec here gets super jammy and lush, tasting like dark plums exploded in your mouth. Cabernet Sauvignon brings spicy peppers to the party, while Bonarda offers a fruity kick that feels like a warm hug. It is big, bold, but surprisingly refreshing.
The vibe
Weekend Getaway
Reservoir Views
Arid Heat
San Juan locals flock here on weekends to ride jet skis and roast meat, so the energy is pure vacation mode. It sits right next to Zonda Valley but feels like the fun younger sibling. With the Andes looking down and the sun blazing overhead, it is an arid playground where vines compete with beach umbrellas for the best view of the water.
San Juan locals flock here on weekends to ride jet skis and roast meat, so the energy is pure vacation mode. It sits right next to Zonda Valley but feels like the fun younger sibling. With the Andes looking down and the sun blazing overhead, it is an arid playground where vines compete with beach umbrellas for the best view of the water.
San Juan locals flock here on weekends to ride jet skis and roast meat, so the energy is pure vacation mode. It sits right next to Zonda Valley but feels like the fun younger sibling. With the Andes looking down and the sun blazing overhead, it is an arid playground where vines compete with beach umbrellas for the best view of the water.
Who's who
Hidden Gems
Blend Suppliers
Boutique Labels
Finding a bottle specifically labeled Ullum can be a treasure hunt since much of the fruit heads into bigger regional blends. However, brave boutique producers are staking their claim. Keep an eye out for labels embracing the desert terroir, as well as experimental lots from larger San Juan powerhouses who know exactly how good this fruit can get when treated right.
Finding a bottle specifically labeled Ullum can be a treasure hunt since much of the fruit heads into bigger regional blends. However, brave boutique producers are staking their claim. Keep an eye out for labels embracing the desert terroir, as well as experimental lots from larger San Juan powerhouses who know exactly how good this fruit can get when treated right.
Finding a bottle specifically labeled Ullum can be a treasure hunt since much of the fruit heads into bigger regional blends. However, brave boutique producers are staking their claim. Keep an eye out for labels embracing the desert terroir, as well as experimental lots from larger San Juan powerhouses who know exactly how good this fruit can get when treated right.
LOCAL TALES
Moving the River
Moving the River
Moving the River
Before the 1980s, this area was just a thirsty patch of dirt praying for rain that never came. The game changed forever with the construction of the Ullum Dam. It was not just about electricity, it was about survival. By taming the San Juan River, engineers created a massive oasis that transformed the landscape from dust bowl to fruit bowl. Suddenly, irrigation became reliable rather than a gamble. This allowed viticulture to flourish where only scrub brush dared to grow before. It is a testament to human stubbornness-we decided we wanted wine here, so we literally moved a river to make it happen.
Before the 1980s, this area was just a thirsty patch of dirt praying for rain that never came. The game changed forever with the construction of the Ullum Dam. It was not just about electricity, it was about survival. By taming the San Juan River, engineers created a massive oasis that transformed the landscape from dust bowl to fruit bowl. Suddenly, irrigation became reliable rather than a gamble. This allowed viticulture to flourish where only scrub brush dared to grow before. It is a testament to human stubbornness-we decided we wanted wine here, so we literally moved a river to make it happen.
The Angry Wind
The Angry Wind
The Angry Wind
If you visit, hold onto your hat. Literally. The Zonda wind is a legendary weather phenomenon here that acts like a hairdryer on steroids. It roars down from the Andes, raising temperatures drastically in a matter of hours. While it drives the locals insane and cancels school, the vines actually kind of like it. This dry, hot air prevents rot and keeps the fruit incredibly healthy. Of course, it can also snap branches if it gets too aggressive. Winemakers view it as a frenemy-it keeps the fungus away but threatens to blow the whole vineyard into the next province if it wakes up on the wrong side of the bed.
If you visit, hold onto your hat. Literally. The Zonda wind is a legendary weather phenomenon here that acts like a hairdryer on steroids. It roars down from the Andes, raising temperatures drastically in a matter of hours. While it drives the locals insane and cancels school, the vines actually kind of like it. This dry, hot air prevents rot and keeps the fruit incredibly healthy. Of course, it can also snap branches if it gets too aggressive. Winemakers view it as a frenemy-it keeps the fungus away but threatens to blow the whole vineyard into the next province if it wakes up on the wrong side of the bed.
Flip Flops and Fermentation
Flip Flops and Fermentation
Flip Flops and Fermentation
Ullum is weird because it is one of the few wine regions where you are as likely to see a wakeboard as a tractor. Because the reservoir is the main tourist attraction for the province, the vineyards have a front-row seat to summer parties. It creates a strange juxtaposition. On one side of the fence, you have serious agronomists measuring soil moisture and worrying about harvest dates. On the other side, you have families blasting reggaeton and eating choripán by the water. Some wineries have leaned into this, opening tasting rooms that cater to the flip-flop crowd, proving that fine wine does not always need a stiff collar and a hushed room.
Ullum is weird because it is one of the few wine regions where you are as likely to see a wakeboard as a tractor. Because the reservoir is the main tourist attraction for the province, the vineyards have a front-row seat to summer parties. It creates a strange juxtaposition. On one side of the fence, you have serious agronomists measuring soil moisture and worrying about harvest dates. On the other side, you have families blasting reggaeton and eating choripán by the water. Some wineries have leaned into this, opening tasting rooms that cater to the flip-flop crowd, proving that fine wine does not always need a stiff collar and a hushed room.
LOCAL WINE STYLES
Argentinian Bonarda
Imagine a wine that sat on the bench for years while Malbec got all the glory, but now it is stepping up with intense fruitiness. This lush red offers buckets of cherry flavor without taking itself too seriously.
Imagine a wine that sat on the bench for years while Malbec got all the glory, but now it is stepping up with intense fruitiness. This lush red offers buckets of cherry flavor without taking itself too seriously.
Argentinian Syrah
Often lurking in the background while Malbec takes the selfies, this bold red delivers a punch of black fruit and peppercorn that demands your attention immediately. It is the brooding bad boy of the Andes mountains.
Often lurking in the background while Malbec takes the selfies, this bold red delivers a punch of black fruit and peppercorn that demands your attention immediately. It is the brooding bad boy of the Andes mountains.
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