This valley differs morphologically from the surrounding landscape: the hills are steeper, and larger areas are covered by forest. Cerrina is composed of several hamlets scattered across the territory—clusters of houses built near farmland or on the hills, connected by a dense network of roads and country lanes. These routes are ideal for cycling, though here the gradients are a little more demanding. Among the hamlets are Piancerreto, Case Bolli, Montalero, and Perosio.
The history of the village reflects that of the broader area, but it was in the 1500s that more consistent settlement began. To this period can likely be traced the construction of a defensive building known as the Cassaforte, built in the Gothic style. Today, after careful restoration, it houses the municipal library, while its solid brick structure remains striking.
The parish church, built in the first half of the 19th century, features a neoclassical façade and a three-nave layout, while its bell tower is slightly older.

This valley differs morphologically from the surrounding landscape: the hills are steeper, and larger areas are covered by forest.

Cerrina is composed of several hamlets scattered across the territory—clusters of houses built near farmland or on the hills, connected by a dense network of roads and country lanes. These routes are ideal for cycling, though here the gradients are a little more demanding. Among the hamlets are Piancerreto, Case Bolli, Montalero, and Perosio.

The history of the village reflects that of the broader area, but it was in the 1500s that more consistent settlement began. To this period can likely be traced the construction of a defensive building known as the Cassaforte, built in the Gothic style.

Today, after careful restoration, it houses the municipal library, while its solid brick structure remains striking.

The parish church, built in the first half of the 19th century, features a neoclassical façade and a three-nave layout, while its bell tower is slightly older.