450 km (280 miles) south of Mendoza you'll find Las Leñas, one of Argentina's most popular ski resorts. Furnished with 14 lifts and well over 30 runs, these slopes are also home to one of the continent's (yes, continent's) longest ski trails, topping out at a whopping 7,050 meters (that's 4.4 miles, in case you don't have your conversion chart with you).
Due to its distance from the city, most visitors stay upwards of 6 days, though its possible for weekend warriors to access the slopes from the nearby towns of Malargüe and Los Molles. Trails vary in difficulty, but overall are excellent for both beginners and intermediate level skiers/boarders, with the availability of night and heli-runs for the more die hard adrenaline junkies.
If you happen to plan your trip during Argentina's summer months, Las Leñas can also act as a good home-base for everything from hiking and mountain biking to climbing and ziplining. Check out the day-long Valle Hermoso trek to get a good sense for the kind of scenery you're in for, and bear in mind that this time of year will be less crowded (which is always a good thing).
Location:450 km (280 miles) south of Mendoza, Argentina
Note:Ski season runs from June to mid-October, though the resort remains open year round.