Oman proper

The Imamate of Oman (Arabic: إِمَامَة عُمَان, romanised: Imāmat ʿUmān), officially the Imamate State of Oman (Arabic: دولة إمامة عُمان), was several succession of states within the Oman proper (Arabic: عُمَان ٱلْوُسْطَى, romanised: ʿUmān al-Wusṭā, lit. 'Central Oman') in the Hajar Mountains, part of the present-day Sultanate of Oman. The capital of the Imamate alternated historically between Rustaq and Nizwa. The Imamate's territory extended north to Ibri and south to the Alsharqiyah region and the Sharqiya Sands. The Imamate was bounded in the east by the Hajar Mountains and in the west by the Rub' al Khali (Empty Quarter) desert. The Al Hajar Mountains separated the Imamate of Oman from Muscat and Oman. The elected Imam (ruler) resided in the capital, and Walis (governors) represented the Imamate in its different regions.