Once out of the Remolinos and in the main flow of the River, this is where I like to rig up the Streamer rod and swing flies in the middle of the river as well as underneath the overhanging willow banks on the edges. This is how you catch the Browns in this river. Rarely will you see a Brown sipping in the Rio Grande but they can’t seem to resist a well placed streamer.
Along the edges of the River are numerous weed beds full of scuds and insect life. Fish cruise around these weed beds and can be spotted from the bank as well as from the boat. This is where a dry/dropper set up can be effective as the fish have their heads down looking for food in the weeds.
While large hatches are not common, I have seen some of the biggest Mayfly hatches of my life on this river, particularly in December on cloudy/rainy days. On one occasion the 80 meter wide river was literally blanketed with a size 16 Mayfly resembling a March Brown. Fish were going crazy, eating both adults and emergers and the fishing was spectacular all day long. Generally however the hatches here are much less predictable than in the Western US, except for the evening Caddis hatches which can happen throughout the season.
This part of the river in Argentina offers a great contrast to the Chilean side which falls much steeper in a more classic freestone style. They both have their distinct charms and if you are at the Valle Bonito Lodge in Chile for a week long trip, we will encourage you to spend a day on the Argentine side and enjoy this magnificent fishery, landscape and the friendly people that we work with. You will love it!