Uninhabited , it is covered by woods of oaks and holm oaks , and is the only island in the archipelago to have kept its original vegetation cover .
Zannone is a small island belonging to the Ponziano archipelago , annexed to the park in 1979 .
Uninhabited , Zannone is covered by woods of oaks and holm oaks , and is the only island in the archipelago to have kept Zannone 's original vegetation cover .
Zannone is a small island belonging to the Ponziano archipelago , annexed to the park in 1979 .