List of mountains in Oman
Although much of the country has a desert or semi-desert and relatively flat territory, Oman has mountains that include the Hajar Mountains (Arabic: جبال الحجر), located in the northeast of Oman and the far northeast of the United Arab Emirates. These mountains constitute the tallest mountain range in the eastern part of the Arabian Peninsula.
Source: Wikipedia — List of mountains in Oman (CC BY-SA 4.0)