The Rissuolo torrent makes a sharp cut in the middle of the north slope and reaches the main valley just west of La Peccia Hamlet, passing under the so-called Napoleonic Bridge.

The Sesia Valley goes basically eastward from the Monte Rosa to Varallo and the plains, so it was much shorter to pass the mountains in this relative safe spot.

A dirt road begins from Sant'Antonio school house (now a restaurant and mountain hut in the GTA route[4]) and goes up to just under La Peccia hamlet, but its use by offroad vehicles is restricted to farmers and local inhabitants.

Track 1c[8] gets a different route, from Alpe Larecchio to the west, up to Lago della Balma lake and then east on the peaks to reach the Colle Valdobbia.

The CAI No.202 path[11] (bold 2 on red/yellow/red) leaves the dirt road midway between Sant'Antonio and La Peccia Hamlet to head up the east bank of the Rissuolo valley to Alpe Pile where the Rifugio Abate Carestia[12] mountain hut is located and then up to Lago Bianco and Lago Nero (White and Black Lake) or the Corno Bianco, 3320 m., the highest peak in the Vogna valley in ma maze of sub-tracks.

The ring has a roughly triangular fixed route, with the lower road (the above-mentioned No.1 track) from Ca' di Janzo and the higher path from Selveglio converging on La Peccia.