[1] Part of the Douro basin, its entire path is made in the old district of Viseu.

Nearby Magueija, in a small canyon of Balsemão was detected an extremely localized forest dominated by Elm (Ulmus glabra) and Narrow-leafed Ash (Fraxinus angustifolia).

[1] Along with watermills, its possible to find in the margins of the Balsemão River the so-called “leiras” (narrow green stretches of cultivated land).

[2] Near the end of its course, on the right bank, it's possible to find the Chapel of São Pedro de Balsemão, a former Visigothic sanctuary dating back to the 7th century and now a National monument.

[3] The Varosa, in turn, will meet the Douro River near Peso da Régua.