The Rio Curuá-Una is a 93-kilometer-long river in the state of Pará, Brazil, flowing as a right-bank tributary into the Amazon River. Its course runs through the Tapajós-Xingu moist forest ecoregion. A significant feature shaping the river's character is the Curuá-Una hydroelectric plant, a dam constructed in 1977 which created a reservoir. This infrastructure is a key consideration for paddlers, as it influences water flow and access. The dam is located near Santarém, and accessing the area requires planning, with local transport or guided tours from Santarém being potential options. Downstream from the dam, the river continues for several kilometers, with one source noting fish collection activity just a couple of kilometers downstream of the impoundment. The river has a network of at least two tributaries. While specific put-in or take-out points, seasonal water temperatures, and explicit regulations for paddling are not detailed, the presence of the operational hydroelectric plant is a critical safety and planning factor. The surrounding Amazonian environment suggests potential for wildlife observation, with historical records mentioning the translocation of Amazonian manatees to the region in the early 1980s. The overall experience is defined by its location within the Amazon basin, with the hydroelectric facility representing a major human alteration to the natural river system.