Cottonera Lines

Cottonera Lines
Is-Swar tal-Kottonera
Cospicua and Birgu, Malta
The Cottonera Lines as seen from Għajn Dwieli
Map of the Cottonera Lines and the Santa Margherita Lines. The Cottonera Lines are the outer line of fortifications.
Coordinates	35°52′37.4″N 14°31′36.2″E / 35.877056°N 14.526722°E / 35.877056; 14.526722
Type	Line of fortifications
Site information
Owner	Government of Malta Various private owners
Condition	Mostly intact
Site history
Built	1670–1760s
Built by	Order of Saint John
In use	17th–20th centuries
Materials	Limestone
Battles/wars	Siege of Malta (1798–1800)

The Cottonera Lines (Maltese: Is-Swar tal-Kottonera), also known as the Valperga Lines (Maltese: Is-Swar ta' Valperga), are a line of fortifications in Bormla and Birgu, Malta. They were built in the 17th and 18th centuries on higher ground and further outwards than the earlier line of fortifications, known as the Santa Margherita or Firenzuola lines, which also surround Bormla.