Valle Lomellina

Breme (Lombard: Bräm) is a comune (municipality) in the Province of Pavia in the Italian region of Lombardy, located about 60 kilometres (37 mi) southwest of Milan and about 40 kilometres (25 mi) west of Pavia. As of 31 December 2004, it had a population of 889 and an area of 19.2 square kilometres (7.4 sq mi).Breme borders the following municipalities: Candia Lomellina, Frassineto Po, Sartirana Lomellina, Valle Lomellina, Valmacca.

Zeme is a village and comune in the Province of Pavia, in the Lombardy region of northwest Italy.

Sartirana Lomellina is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 60 km southwest of Milan and about 40 km west of Pavia. As of 31 December 2004, it had a population of 1,837 and an area of 29.5 km².Sartirana Lomellina borders the following municipalities: Bozzole, Breme, Mede, Semiana, Torre Beretti e Castellaro, Valle Lomellina, Valmacca.

Semiana is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 50 km southwest of Milan and about 35 km west of Pavia. As of 31 December 2004, it had a population of 256 and an area of 9.9 km².Semiana borders the following municipalities: Lomello, Mede, Sartirana Lomellina, Valle Lomellina, Velezzo Lomellina.

Velezzo Lomellina is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 50 km southwest of Milan and about 35 km west of Pavia. As of 31 December 2004, it had a population of 113 and an area of 8.6 km².The municipality of Velezzo Lomellina contains the frazione (subdivision) Campalestro. Velezzo Lomellina borders the following municipalities: Cergnago, Lomello, Olevano di Lomellina, San Giorgio di Lomellina, Semiana, Valle Lomellina, Zeme.

Cozzo is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 50 km southwest of Milan and about 40 km west of Pavia. As of 31 December 2004, it had a population of 421 and an area of 17.4 km².Cozzo borders the following municipalities: Candia Lomellina, Castelnovetto, Langosco, Rosasco, Sant'Angelo Lomellina, Valle Lomellina, Zeme.

Candia Lomellina is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 50 kilometres (31 mi) southwest of Milan and about 45 kilometres (28 mi) west of Pavia. As of 31 December 2004, it had a population of 1,639 and an area of 27.8 square kilometres (10.7 sq mi).The municipality of Candia Lomellina contains the frazione (subdivision) Terrasa. Candia Lomellina borders the following municipalities: Breme, Casale Monferrato, Cozzo, Frassineto Po, Langosco, Motta de' Conti, Valle Lomellina.

Torre Beretti e Castellaro is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 60 km southwest of Milan and about 40 km southwest of Pavia. As of 31 December 2004, it had a population of 604 and an area of 17.5 km².Torre Beretti e Castellaro borders the following municipalities: Bozzole, Frascarolo, Mede, Sartirana Lomellina, Valenza.

Mede is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 50 km southwest of Milan and about 35 km southwest of Pavia. As of 31 December 2004, it had a population of 6,993 and an area of 33.4 km2.Mede borders the following municipalities: Frascarolo, Gambarana, Lomello, Pieve del Cairo, Sartirana Lomellina, Semiana, Torre Beretti e Castellaro, Villa Biscossi.

Castello d'Agogna is a small town and comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 45 km southwest of Milan and about 35 km west of Pavia. It is crossed by the Agogna river. Castello d'Agogna borders the following municipalities: Ceretto Lomellina, Mortara, Olevano di Lomellina, Sant'Angelo Lomellina, Zeme.

Sant'Angelo Lomellina is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about 45 km southwest of Milan and about 35 km west of Pavia. As of 31 December 2004, it had a population of 821 and an area of 10.4 km².Sant'Angelo Lomellina borders the following municipalities: Castello d'Agogna, Castelnovetto, Ceretto Lomellina, Cozzo, Zeme.

The Rotaldo, known in its upper course as the Laio, is a 40-kilometre (25 mi) river (classified as a torrente) of northern Italy, and a right-side tributary of the Po River. Most of its course falls within the Province of Alessandria and all of it within the former Province of Casale. The river is of modest flow and is heavily reliant on rainfall with a discharge near its mouth of 1.6 cubic metres per second (57 cu ft/s). The river is born on the slopes of Madonna dei Monti near Grazzano Badoglio in the Province of Asti, close to one of the springs of the Grana del Monferrato. Its early course makes an arc through the hills of the Basso Monferrato, heading first west-southwest before curving gradually to west-northwest. It receives waters from a number of small streams to its left and passes through the communes of Olivola and between Vignale Monferrato and Frassinello Monferrato. At Roncaglia, it is joined at the left by a second branch whose main source is in the hills near Ottiglio; this second branch has been joined by streams rising in Sala Monferrato, Cella Monte, and Rosignano Monferrato. From the right, it receives streams arising in Camagna Monferrato and Conzano. At San Maurizio (near Occimiano), it is joined from the left by a further branch with origins near Terruggia. Entering the Casalese plain, the Rotaldo River follows a sinuous course, passing through Borgo San Martino, Ticineto, and Valmacca where it is joined from the left by the Gattola. It enters the Po River at Bozzole.