Mountain community Alta Val Lemme and Alto Ovadese

The institution was formed by the municipalities of: Tagliolo Monferrato, Lerma, Casaleggio Boiro, Mornese, Bosio, Carrosio, Voltaggio, Fraconalto, Parodi Ligure, Montaldeo, which since 2010 merged into the mountain community "Alta Val Lemme, Alto Ovadese, Alta Valle Orba, Valle Erro and Bormida di Spigno", renamed to mountain community Appennine Aleramico Obertengo^[1].

It was located in the Ligurian Apennines; it included the high Lemme valley and the Gorzente valleys, Piota, reaching to understand the Piedmontese part of Lake Busalletta, dei Lakes of the Gorzente and a small part of the Stura di Ovada only 30 km from Genoa; moreover in its territory was the Mount Tobbio (1091 m), which was the symbol of the mountain community. The headquarters was in Bosio^[2].

Much of its southern territory was part of the Parco Regionale delle Capanne di Marcarolo which has inside it the shrine dedicated to the 147 deaths of the Strage della Benedicta.

For centuries united to the Republic of Genoa that had made a resource for the timber with which to build the ships, then followed the fates of Liguria sabauda until 1859, when the Province of Novi decree Rattazzi passed to the region Piemonte and to province of Alessandria. From 1943 to 1945 it was the scene of clashes between republicans, Nazis and partisans including the aforementioned Benedicta massacre in 1944.