Persian Gulf flooding of the basin started 15,000 years ago due to rising sea levels of the Holocene glacial retreat. This inland sea of some is connected to the Gulf of Oman in the east by the Strait of Hormuz; and its western end is marked by the major river delta of the Shatt al-Arab, which carries the waters of the Euphrates and the Tigris. In Iran this is called "Arvand Rood", where "Rood" means "river". Its length is , with Iran covering most of the northern coast and Saudi Arabia most of the southern coast. The Persian Gulf is about wide
Persian Gulf Pro League the remaining games are shown on IRIB regional channels. Furthermore, "Navad", a popular weekly football program broadcast by IRIB TV3, shows highlights of all Persian Gulf Pro League and Azadegan League matches. The Persian Gulf Pro League has been sponsored since 2005. There have been four sponsors since the league's formation. According to a study from November 2012, clubs in the 2010–11 Persian Gulf Cup on average obtained 15% of their income from sponsorships. Persian Gulf Pro League The Persian Gulf Pro League (), formerly known as the Iran Pro League (), is the highest division of professional football in