Mount Formigueiros Nature · Folgoso do Courel, Quiroga, Lugo Image of Folgoso do Courel, not of the place itself. At 1,643 metres it is the greatest height of the sierra do Courel, followed by Pía Paxaro with 1,610. From its summit one can appreciate the difference in height of more than a thousand metres that separates the summits from the floor of the Lor valley. Photo: Miguel Branco (CC BY-SA 4.0) What to see and do in Folgoso do Courel