Trekking to Turquoise Creek Barreal: High-Altitude Camp on Mercedario's Slopes
Difficulty
challenging
Duration
3 days (≈72 hours)
Fitness Level
High — regular hikers who train at elevation or do sustained aerobic work will be comfortable
Overview
Above 3,900 meters a mineral-bright stream slices the Andes into turquoise. This guided trek from Barreal reaches Arroyo Turquesa and a camp on Mercedario’s lower slopes, combining glacier views, high-desert travel, and real mountain work.
Trekking to Turquoise Creek Barreal: High-Altitude Camp on Mercedario's Slopes
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The air thins and a color appears — an impossible turquoise cutting through scree and ice. On the approach to Arroyo Turquesa you trade eucalyptus and scrub for gravel flats and the metallic hiss of meltwater. Guides slow the group to one steady beat, boots kicking a soft, mineral-rich dust that gives the creek its unusual hue. Above 3,900 meters the Andes take on a different character: glaciers hang like folded cloth from steep ridges, and Mercedario, towering at 6,770 meters, keeps a slow, austere watch.
Adventure Photos
Adventure Tips
Acclimatize in Barreal
Spend 24–48 hours at moderate elevation before the trek to reduce altitude symptoms and improve stamina.
Bring a warm sleeping liner
Even with provided tents, nights near 4,000 m can drop well below freezing—an insulated liner adds critical warmth.
Use trekking poles
Poles stabilize you on loose moraine and steep approaches, saving energy and protecting knees at high altitude.
Pack water and electrolyte tablets
Hydration needs increase at altitude; carry 2–3 liters and supplement with electrolytes to avoid headaches and fatigue.
Local Insights
Wildlife
- Andean fox (zorro culpeo)
- Highland birds like rufous-bellied seedsnipe
History
Miners and local communities have influenced river courses and trails for generations; remnants of mining activity helped create the creek’s unusual colors.
Conservation
This high-altitude environment recovers slowly from disturbance—stick to established campsites, pack out waste, and avoid moving stones or plants.
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Adventure Hotspots in Barreal
Frequently Asked Questions
Recommended Gear
Mountaineering boots
Sturdy, insulated boots with ankle support handle scree, moraine and cold nights.
Insulated sleeping liner or lightweight down bag
Provides necessary warmth above 3,500–4,000 m when campsite temps plummet.
Trekking poles
Reduces impact on knees and increases balance on loose, steep terrain.
High-SPF sun protection and glacier sunglasses
Intense solar radiation at altitude plus reflective snow or ice require strong UV protection.
summer specific