An open and not particularly interesting stream, but continuous, with a few nice rappels. Best done at the beginning of the season, as it tends to dry up in summer.

An open and not particularly interesting stream, but continuous, with a few nice rappels. Best done at the beginning of the season, as it tends to dry up in summer.

From the A26 highway, take the Gravellona Toce exit. Drive straight through the town toward Omegna. Before reaching the town center, at the Penny Market roundabout, turn left; at the next roundabout, take the first exit on the right, and a little further ahead turn left onto Via Nobili. Continue uphill along the street until you reach the stream outlet. Park where possible, avoiding private properties. At the beginning of the street, on the right, there is a parking area — a bit farther from the outlet, but convenient and public.

Continue along Via Nobili, pass a (private) fountain on the right, and further ahead, at a fork (Google SW), take the marked mule track to the left leading to Alpe Mastrolini (the trail crosses the gorge as it climbs). Shortly before reaching the meadows of the alpe, near a ruined building, leave the main trail and follow a flat path to the right. Cross a small valley and reach the streambed. It is also possible to shorten the approach by following the “Vertical” trail, which branches off along the ascent and climbs steeply on the left bank.

No particular difficulties. Some rappels descend over multiple waterfalls in sequence.

After the final rappel, pass under the large dam (on the left), then climb up onto the embankment shortly afterward and reach the road and your car. Be careful not to enter private property.