Fishing in Mendoza

Mendoza sits in the western spine of Argentina, where the Andes drop into high desert and the rivers run cold and fast out of the mountains before flattening into the arid lowlands below.

It's not Patagonia — the famous southern trout fisheries are a long way south — but Mendoza has its own mountain fishing scene that rewards the angler willing to get up into the range. The fish are almost entirely trout: rainbow, brown, and brook (fontinalis).

They arrived with European settlers over a century ago and have settled into the glacial streams and high Andean lakes as if they were always there.

The rivers run heavily silted with snowmelt through the early part of the season, so the fishing calendar splits naturally in two.

Early season — November and December — favors the high-altitude lakes, small bodies of water tucked well up into the Andes where trout hold tight to the rushes.

A float tube gets you to the better water; streamers and nymphs on sinking or sinking-tip lines are the standard approach. Later in the season, as the rivers clear, the focus shifts to moving water.

Valle Hermoso, up near the Las Leñas area, is one of the more storied spots. Three rivers — the Río Cobre, Río Tordillo, and Río Grande — come together there, creating a mix of meanders, riffles, and pocket water.

Rainbows tend to hold in the faster runs, browns in the slower bends, and brook trout in the quieter water. Two- to four-pound fish are common in the better stretches.

Closer to San Rafael, the Río Atuel and Río Diamante drain significant Andean terrain and carry trout through landscapes that shift from mountain to desert as you move downstream.

The season generally opens around November 1 and runs through late April or early May, though some areas stay open into August — check current rules with the provincial authority before you plan around it.

Rivers are public water in Mendoza, but access to the bank may cross private land, and local fishing shops are the most reliable source for current access points and any required permits.

The rivers sit roughly two hours from Mendoza city, mostly fast-flowing mountain creeks at elevation. Getting there early matters — the window between snowmelt clearing and summer heat is when the fishing is sharpest. Condors are a regular presence overhead.

That detail alone tells you something about how far from the city you actually are.