Unlike other major polders, it is surrounded by lakes and below-sea-level channels. By some definitions, it is the world's largest artificial island. Levees, dikes, and pumping were used to drain the land. The polder's name references the ancient Lake Flevo. The Flevopolder, along with the Noordoostpolder, forms the Flevoland province, which is located near Amsterdam in the southwest and Kampen, Overijssel in the northeast.
