Goeography.. Main article: Iwo Jima Iwo Jima is a volcanic island about 1,200 km (650 nautical miles) south of Tokyo, 1,300 km (702 nautical miles) north of Guam and approximately halfway between Tokyo and Saipan (24.756�N, 141.290�E). It is approximately 21 square kilometers (5,200 ac), with Mount Suribachi at its southern tip being its most prominent feature. In June 2007 the island was officially renamed Iwo To, a name that had been used by local residents before the war. The name was changed on protest from former residents and after two popular Clint Eastwood films referenced the island as Iwo Jima. The Japanese characters for Iwo Jima and Iwo To are the same, but the pronunciation had changed when Japanese soldiers arrived and pronounced it differently than the residents.