Chestnut groves of O Riós Nature · O Riós, Verín, Ourense Image of O Riós, not of the place itself. The centuries-old chestnut trees scattered across the municipality appear on the municipal coat of arms itself and sustain a gathering economy; the concello has dedicated an interpretation centre to them in the parish of Trasestrada. Photo: Elisardojm (CC BY-SA 4.0) What to see and do in O Riós