Ahvaz
The seat of the province has, for the most of its history, been in its northern reaches, first at Susa (Shush) and then at Shushtar. During a short spell in the Sasanian era, the capital of the province was moved to its geographical center, where the river town of Hormuz-Ardashir (modern Ahvaz). However, later in the Sasanian time and throughout the Islamic era, the provincial seat returned and stayed at Shushtar, until the late Qajar period. With the increase in the international sea commerce arriving on the shores of Khuzestan, Ahvaz became a more suitable location for the provincial capital. The River Karun is navigable all the way to Ahvaz (above which, the Karun flows through rapids). The town was thus refurbished by the order of the Qajar king, Naser al-Din Shah and renamed after him, Nâseri. Shushtar quickly declined, while Ahvaz/Nâseri prospered to the present day.
Nimruz Province
Nimruz (Dari/; ) is one of the 34 provinces of Afghanistan, located in the southwestern part of the country. It lays to the east of the Sistan and Baluchestan Province of Iran and north of Balochistan, Pakistan. The province contains five districts, encompassing about 649 villages, and roughly 156,600 settled people. The city of Zaranj serves as the provincial capital and Zaranj Airport, which is located by that city, serves as a domestic airport for the province.