Piasco, located on the left of the Varaita stream, has ancient origins. It was a Roman customs station and then passed from the Lords of Venasca to the Marquises of …
Rossana Castle (ruins), reachable with multiple single tracks of difficulty between S2 and S3. Crossing point including Monte Pagliano and Eremo di Busca.
From the bridge over the Varaita stream, just outside the centre of Costigliole Saluzzo, you can enjoy an excellent view of the village perched on the hill and the stream itself.
Very beautiful castle, seen from the hill with a fairly challenging climb. For a perfect view there are 2 main points, one near two houses, the other continuing to climb.