Set off from the San Cristofalu Chapel, at the top of the village of Erbajolo, along the D14.
(D:A) Head east along the D16, which climbs towards Sant’Andria di Boziu, and follow the blue signposts. After about 100 metres, take a path on the left. Climb up to a junction.
(1) Continue straight on. Climb whilst staying on the ridge, heading north-north-east. This will take you to the Spinerazzie summit at an elevation of 931 (unnamed on the map).
(2) Turn left and descend gently along the ridge, heading west-north-west then west (blue markings). Pass the ruined chapel of San Chirgu (a small section of the apse remains; there’s a lovely view) and reach a fork at the foot of a telecoms mast.
(3) Then turn sharply left. You’ll soon reach the D14; follow it to the left. Ignore a track on the right.
(4) At a left-hand bend, leave the road and start descending to the right through the old wheat-threshing areas (aghje in Corsican).
(5) Further down, at the last aghja, turn left. Walk along a gently sloping track, cross a few ravines and reach the abandoned village of Casella.
(6) Turn right, cross the abandoned village and follow the orange markings. At the far end of the village (old bread oven), turn left along the old terraces (do not follow the green markings towards Poggio). Cross a stream and come out onto a track.
(7) Follow the track to the left, through a large oak forest, and reach the abandoned hamlet of Cherchiglioni.
(8) Carry on along the track.
(9) At the next junction, turn left, heading south then south-south-west towards A Petra a u Moru. Reach this memorial site. Continue south and, shortly afterwards, follow a path on the left to join a track (still following the orange markings).
(10) Follow the track to the left as far as the place known as Foce at an elevation of 688 (Teppa la Costa on the map; lovely view, former wheat-threshing area).
(11) Leave the track and take a ridge path for a final climb heading north-east. Descend, pass the cemetery and reach the San Cristofalu Chapel (S/E)