Trail of os soutos e carballeiras Activity · Monterroso, Ulloa, Lugo Image of Monterroso, not of the place itself. One of the concello's four waymarked itineraries, alongside those of the Romanesque, the Camino Francés and the Feira Vella; it runs through the chestnut groves and oak woods that accompany the upper course of the river Ulla. Photo: P.Lameiro (CC BY-SA 3.0) What to see and do in Monterroso