The trail takes its name from the hill hamlet of Santa Rosalia or Rosaria (a name derived from the holy Rosary). This locality refers to the feud tied to the farmstead of Santa Rosalia, which was given to the city of Alba by King Charles Emmanuel III of Savoy on 28th June 1742. Thanks to the fief, Alba could boast the title of "Countess of Santa Rosalia", with the comital crown on its coat of arms. The trail is easy to walk, with a first flat part between the area of San Cassiano, Strada Cauda, Corso Enotria and Località Rivoli, and a second hilly part that, surrounded by nature and several vineyards, reaches the hamlet of Santa Rosalia. The route continues towards Alba on the Baresane municipal road or, via an alternative route through nature, it descends from Santa Rosalia to Rabagli. At the bottom of the hill, the path rejoins on the left the trail network leading to the castle of Grinzane Cavour, while on the right it climbs up towards the Bernardina hill, a place of historical and architectural interest, today marked by contrasts between traditional architecture represented by the manor house and modern architecture such as the "Acino di vetro (the Glass grape). The hiking itinerary comes to an end as you return from Cantina di Roddi towards San Cassiano. The hilly stretch provides impressive panoramic views of the city of Alba and the surrounding hillside landscapes, now a UNESCO World Heritage Site, dotted with the many castles that have dominated the hills of the Langhe and Roero for centuries. In the background, on a clear day, the majestic chain of the Alps, stretching from Monviso to Monte Rosa, can be seen.