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Geography of the Trebbia
Valley |
The territory of the Upper Trebbia Valley,
located between the Trebbia river spring and Bobbio town,
have typically mountain features. The Trebbia river is born
from the slopes of the Prelà mountain (1407 ms.) and
it flows for 118 Kms towards the Po river through a passage
among mountains down to the plain, picking up the tribute
of brooks and streams fed by numerous sources located in
the whole region.
The watershed among the basin of the Trebbia river
and the one of the Scrivia river departs from the Prelà Mountain
and flows for thirty kilometers from North to South, except
a brief line between the Antola Mountain and the Carmo
Mountain where it bends to Northeast. The main watershed
ends up to the Chiappo mountain (1700 ms.), a kind of crossroad
for the Provinces of Alexandria, Pavia and Piacenza. The
tract between the Prelà Mountain and the Chiappo
Mountain have typical high mountain features, never lower
than 1300 mt., characteristics accented by the full exposure
to winds and atmospheric agents; even so the tract is easily
practicable, with easy paths.
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From
Prelà Mountain, through Druso Mountain
and Cremado Mountain, one can get to the top of the
Antola mountain shortly (1597 ms.); towards East stretches
the Brugneto valley that reflects itself in the artificial
basin created by means of a dam built up to fulfill
Genoa’s water requirements;, although it is not
the highest, Antola Mountain certainly is an extraordinary
panoramic point. During clear weather days the view
is amazing and it ranges 360° on the boundless
skyline: one can see Genoa’s port , the West
Coast , the Corse island, the Tuscan islands
and the Alps, departing from the Apuane Alps to reach
the Retiche Alps, and finally the plain that stretches
it like the sea between the Appennines and the Alps.
From the Antola Mountain the main watershed bends
to Northeast getting after 6 km. to the Capanne of
Carrega; the ridge separates the upper Trebbia Valley
from the upper Val Borbera. Towards Southeast there
is the Brugneto valley followed by the one of the Cassingheno
stream that flows into the Trebbia near Due Ponti
fraction. From Capanne di Carrega, going towards North, one
gets shorlty to the top of Carmo Mountain (1640
ms.) which is corn shaped.
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From Carmo Mountain, towards East, there
is a narrow ridge called Costa Scabbie Poranzi that
marks the border between the Provinces in Genoa and Piacenza,
delimiting on the right the valley of the Terenzone stream
that flows into the Trebbia river near Gorreto. From the
Carmo Mountain the watershed goes again towards North for
8 kms and marks the border between the Province of Alexandria
and the Province of Piacenza and it reaches the top of the
Chiappo mountain (1700 ms.).
On the Chiappo mountain the watershed braches in three
distinguished ridges that go down towards the hills of
the Oltrepo and towards the plain. The ridge that reaches
the Tartago mountain (1688 mt.) leads off towards East
and South towards Lesima Mountain (1724 mt.); along this
watershed lies the border to Pavia and Piacenza Provinces.
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