
Ambient photo: Mariela Elizabeth Robles — via Pexels
A large reservoir on the Colorado River, on the border between La Pampa, Río Negro and Mendoza, one of the most extensive in the country, with pejerrey (silverside) and perch. A huge sheet of water on the Patagonian plateau.
The pejerrey is fished drifting from a boat and from shore, with a very good season in the cooler months. Casa de Piedra has a tourist village, yacht club and ramps, and is a base for fishing and water sports in the Colorado valley.
Base data: OpenStreetMap (ODbL)
At Casa de Piedra Reservoir (La Pampa) you can catch Argentinian silverside (pejerrey), Common carp, Creole perch, Rainbow trout. Allowed styles: Boat, Shore, Trolling, Reservoir.
Access via Route 152. Campsite and ramps.
La Pampa / Río Negro provincial permit depending on the shore.
| Season | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | IDX | NOW |
|---|
| Argentinian silverside (pejerrey). PEAK JUN–AUG | 70 | Excellent | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Common carp. PEAK OCT–MAR | 45 | Good | ||||||||||||
| Creole perch. PEAK NOV–JAN | 15 | Off | ||||||||||||
| 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.
Bottom fishing with boilies, corn or dough and a hair rig. Medium gear with rod pods and a bite alarm; it withstands long fights.
Light spinning with small spoons, micro-jigs and soft plastics, or fly with small streamers. Bait: worm. It keeps company with the trout in Patagonian lakes and rivers.
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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