<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (March 2013) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (March 2013) (Learn how and when to remove this template message) </Td> </Tr> <P> The Château d'If is a fortress (later a prison) located on the island of If, the smallest island in the Frioul archipelago situated in the Mediterranean Sea about 1.5 kilometres (⁄ mile) offshore in the Bay of Marseille in southeastern France . It is famous for being one of the settings of Alexandre Dumas' adventure novel The Count of Monte Cristo . If is the French word for the yew tree . </P> <P> Île d'If measures 3 hectares (0.03 km) and is located 3.5 km (2 ⁄ mi) west of the Old Port of Marseille . The entire island is heavily fortified; high ramparts with gun platforms surmount the cliffs that rise steeply from the surrounding ocean . Apart from the fortress, the island is uninhabited . </P>

What is the prison in the count of monte cristo