Lago di Trebecco

Ruino is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 60 km south of Milan and about 30 km southeast of Pavia. The center of the municipality is the village of Pometo. Pometo, whose population numbers 200, is known for bread production. Ruino borders the following municipalities: Alta Val Tidone, Borgoratto Mormorolo, Canevino, Fortunago, Montalto Pavese, Rocca de' Giorgi, Val di Nizza, Valverde, Zavattarello.

Canevino is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 60 kilometres (37 mi) south of Milan and about 30 kilometres (19 mi) southeast of Pavia. Canevino borders the following municipalities: Alta Val Tidone, Montecalvo Versiggia, Rocca de' Giorgi, Ruino, Volpara.

Zavattarello is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 70 km south of Milan and about 35 km south of Pavia. Zavattarello borders the following municipalities: Alta Val Tidone, Menconico, Romagnese, Ruino, Valverde, Varzi. It is one of I Borghi più belli d'Italia ("The most beautiful villages of Italy"). The main sights is the castle, also known as Castello Del Verme, which overlooks the town. It once housed the war school of Italian Renaissance condottiero Jacopo Dal Verme.

Alta Val Tidone is a new comune (municipality) in the Province of Piacenza in the Italian region Emilia-Romagna, located about 180 kilometres (110 mi) northwest of Bologna and about 30 kilometres (19 mi) southwest of Piacenza. Alta Val Tidone borders the following municipalities: Bobbio, Borgonovo Val Tidone, Canevino, Golferenzo, Pianello Val Tidone, Piozzano, Romagnese, Ruino, Santa Maria della Versa, Travo, Volpara, Zavattarello, Ziano Piacentino It was formed on 1 January 2018 from the union of Caminata, Nibbiano and Pecorara.

Volpara is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 60 km south of Milan and about 30 km southeast of Pavia. Volpara borders the following municipalities: Alta Val Tidone, Canevino, Golferenzo, Montecalvo Versiggia.

Rocca de' Giorgi is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 60 km south of Milan and about 25 km southeast of Pavia. As of 31 December 2004, it had a population of 91 and an area of 10.7 km2. Rocca de' Giorgi borders the following municipalities: Canevino, Montalto Pavese, Montecalvo Versiggia, Ruino.

Valverde is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 70 km south of Milan and about 35 km south of Pavia. As of 31 December 2004, it had a population of 333 and an area of 14.8 km2. Valverde borders the following municipalities: Ruino, Val di Nizza, Varzi, Zavattarello.

Golferenzo is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 60 kilometres (37 mi) south of Milan and about 25 kilometres (16 mi) southeast of Pavia. Golferenzo borders the following municipalities: Alta Val Tidone, Montecalvo Versiggia, Santa Maria della Versa, Volpara. It is one of I Borghi più belli d'Italia ("The most beautiful villages of Italy").

Santa Maria della Versa (Lombard: La Madòna) is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 50 km south of Milan and about 25 km southeast of Pavia. Santa Maria della Versa borders the following municipalities: Alta Val Tidone, Castana, Golferenzo, Lirio, Montecalvo Versiggia, Montù Beccaria, Pietra de' Giorgi, Rovescala, Ziano Piacentino.

Romagnese is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 70 km south of Milan and about 40 km southeast of Pavia. Romagnese borders the following municipalities: Alta Val Tidone, Bobbio, Menconico, Varzi, Zavattarello.

The Giardino Botanico Alpino di Pietra Corva (3 hectares) is a botanical garden located at 950 meters elevation on the side of Pietra di Corvo mountain, just east of Romagnese, Province of Pavia, Lombardy, Italy. It is open daily except Mondays in the warmer months; an admission fee is charged. The garden was established by the municipality of Romagnese in 1967 as a reserve for mountain plants from the Alps and around the world. It is now managed directly by the province, and currently contains a small museum plus about 1300 taxa, including Fritillaria tenella (the garden's symbol), Primula rosea, and Sarracenia purpurea. The surrounding forests are primarily beech and oak, with black pine, larch, and spruce.

Borgoratto Mormorolo is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 60 km south of Milan and about 30 km south of Pavia. As of 31 December 2004, it had a population of 415 and an area of 16.0 km². Borgoratto Mormorolo borders the following municipalities: Borgo Priolo, Fortunago, Montalto Pavese, Ruino.