
Photos: nano4773 (CC BY-SA 3.0) — via Wikimedia Commons
A reservoir on the Mendoza River, just over an hour from the provincial capital, with turquoise waters at the foot of the pre-cordillera and pejerrey (silverside) and rainbow trout. A scenic lake closely tied to the city of Mendoza.
The pejerrey is fished from a boat and from shore, with a good season in the cooler months; the trout appears in the colder water and the river inflows. Potrerillos has boat ramps, clubs and services, and combines fishing with water sports and mountain tourism.
Base data: OpenStreetMap (ODbL)
At Potrerillos Reservoir (Mendoza) you can catch Argentinian silverside (pejerrey), Rainbow trout. Allowed styles: Boat, Shore, Trolling, Reservoir.
50 km from the city of Mendoza, on Route 7.
Mendoza provincial permit.
| Season | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | IDX | NOW |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Argentinian silverside (pejerrey). PEAK JUN–AUG | 70 | Excellent | ||||||||||||
| Rainbow trout. PEAK MAR–APR | 15 | Off |
The number (0 to 100) sums up how likely the species is to be active here this month: it weighs the season, recent catch reports and, where there is a river gauge, the water level.
The pejerrey is a medium-sized fish with a delicate mouth, so the tackle leans to the fine and sensitive side. A recommended setup:
The philosophy of the tackle is simple: the finer and more sensitive it is, the more bites you will detect and the more you will enjoy the fight of this silver fish.
The gear is matched to the setting and the size of trout you are after, but these setups cover most situations in Argentina:
Spinning (general use, trout of 1 to 3 kg):
Fly:
For trophy specimens (5-10+ kg at the Strobel): step up the power—medium/medium-heavy spinning with 15-20 lb braid and a robust fluoro leader, or a 7/8 fly outfit—because these are fish with strength and runs far superior to the average trout.
In every case: a well-adjusted drag, sharp hooks (barbless if you are going to release), and a rubber net to handle the fish with the least possible harm.
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