The territory of Sarzana presents, as regards the geological aspect, two main morphologies: a flat country (interested with alluvial deposits and not) and a hill country (with clayey-calcareous and sandstone formations).
Its total surface is of 34 squarekilometres.
The minumum altitude is at Marinella with 0 m. above the sea level while the maximum one is the top of Boscoleto mountain at 590 m. above the sea level.
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Other mountains and hills are:

• Prulla 466m. a.s.l.
• Groppo mountain 317 m. a.s.l
• Falchetto mountain 300 m. a.s.l.
• Grosso mountain 225 m. a.s.l.
• Darma mountain 163 m. a.s.l.
• Fortress 100 m. a.s.l.
• Paterno 86 m. a.s.l.
• Belvedere 65 m. a.s.l.
• Allegro mountain 54 m. a.s.l.

It is characterized by a Mediterranean climate, a variation of the western Tyrrhene, where, even if there’s a dry-summer period, the rainings are well-distributed and copious from Sept. to May and a large part of June.

The territory is characterized by the “Fluvial Park of Magra and Montemarcello” and there is also a natural oasis in the area called “Bozi”.

Its woodland is about 1500 hectares. The territory is washed by the river Magra and by the followings steams:

• Amola
• Calcandola
• Turì
• Isolone
• San Michele
• Albachiara
• Parmignola

There is also the spring water “Governo” at Piazza of Falcinello.
The watering comes from wells (in the flat part) and from spring waters (in the hill one).