Oost- and Suid-Flevoland form one landmass, with an area of 659 square miles; it is the largest artificial island in the world. Together with the Noordoostpolder, they form the province of [[Flevoland]], created in 1986. | Oost- and Suid-Flevoland form one landmass, with an area of 659 square miles; it is the largest artificial island in the world. Together with the Noordoostpolder, they form the province of [[Flevoland]], created in 1986. |