The Colle di Fenestrelle from Lake della Rovina

The route begins to the left of the small building at the southern end of the developed area of Lake della Rovina (1545 m). 
Follow the "La diga del Chiotas e il Rifugio Genova" trail up to the crest of the Colle di Laura Dam (1980 m, 1 hour and 15 minutes from Lago della Rovina), where the Chiotas Reservoir also comes into view.
The route winds up and down along the southeastern shore of the lake; then, after leaving the dirt road, take the trail to the left leading to Colle di Fenestrelle.
The trail leads up the little grassy plateau just above the road, passes through it and climbs up a few dozen meters to a second flat meadow, next to a stream (may be muddy or swampy in places). It then leads to the left (on the orographic right of the Vallone del Fenestrelle - both valleys that lead up to the Colle bear the same name) and, with many switchbacks, climbs up again, at first on a grassy slope and then over detritic terrain. A short traverse leads to the foot of some rocky outcroppings rubbed smooth by glacial action, which the trail surmounts in a series of tight switchbacks. 
Past the outcroppings the trail descends for a few meters and then begins to climb once more, amidst rocks, rubble and sparse clumps of grass. For a short tract, the trail snakes among the rocks, passing by the turnoff for a difficult trail on the left and then descending again in a series of turns. It then crosses a detritus-filled depression (there may be snow here even in early summer) and moves to the orographic left of the valley. 
A final series of switchbacks leads to a lengthened valley ending at Colle di Fenestrelle (2462 m, 1 hour and 45 minutes from the Chiotas dam reservoir).