
Photos: Pablo D. Flores (CC BY-SA 2.5) — via Wikimedia Commons
A reservoir on the Atuel River, in the heart of the Atuel Canyon in southern Mendoza, with turquoise waters among rock walls and pejerrey (silverside) and rainbow trout. A scenic lake, the center of canyon tourism.
The pejerrey is fished from a boat and from shore, best in the cooler months; the trout appears in the colder water. Valle Grande is the canyon service base, with beach spots, marinas and rafting, ideal for combining fishing and adventure near San Rafael.
Base data: OpenStreetMap (ODbL)
At Valle Grande Reservoir (Mendoza) you can catch Argentinian silverside (pejerrey), Brown trout, Rainbow trout. Allowed styles: Boat, Shore, Trolling, Reservoir.
Access via Route 173 from San Rafael. Inns, campsite and marinas.
Mendoza provincial permit.
Yes, and it is a good moment: in August Argentinian silverside (pejerrey) are at their peak in Valle Grande Reservoir.
| 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 | 45 | Good | ||||||||||||
| Brown 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.
Gear is chosen according to the environment and the expected size. A versatile, concrete setup:
Spinning (general use, rivers and lakes):
Fly fishing:
Recommended accessories: rubber net (less harm to the fish for release), forceps for removing hooks, barbless hooks, and waders for safe wading in cold water.
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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In Valle Grande Reservoir it is worth going when its main species bite: Argentinian silverside (pejerrey) (MAY–SEP); Brown trout (NOV–APR); Rainbow trout (JUN–SEP).
In Valle Grande Reservoir you can fish Boat, Shore, Trolling, Reservoir.
Yes: PESQA lists 2 guides working Valle Grande Reservoir, among them Pesca Mendoza Excursiones, Los Reyunos.
Near Valle Grande Reservoir PESQA lists 14 places to stay: Cabañas Las Escondidas, Cabañas San José del Atuel, Cabañas Las Rocas.
Around Valle Grande Reservoir there are 9 marinas and tackle shops: Casa de Pesca San Rafael, Ale Pesca, Nihuil Rumbo.
Valle Grande Reservoir is in the province of Mendoza.