Appendix A to Annex 1 Revised description of the frontier between the Sultanate of Muscat and Oman and Abu Dhabi Starting in the wadi that separates the gravel plain from the sands east of Al Aqaidat, the frontier runs south along the middle course of this wadi to Hazza Al Dhabi, which lies on a bearing of 273° from the Muscat Customs Post at the mouth of Wadi Sumaini. From there the line runs west to the summit of the dune Sharaf Jabara, and thence south to the mid point on the line between the two principal Jail ar wells, the western "live" well belonging to the Dhawahir (Abu Dhabi) and the eastern, now disused, to the Bani Kaab (Muscat). Thence the line runs west to the westerly limit of the Wadi Sinaibil, where it meets the Dhahiyat Al Shansaubah, and from there south to the sand mound Dimyat Al Yaraibi (Jaraibi) and south to the west of the former well Tawi Adhamiya (to Muscat) and south to a point midway between the long grey ridge Qurun Al Salabikh (to Muscat) and the cone shaped sand dune Sharaf Ghamail. From here the line runs south to the summit of the lone stony sand dune Qurn Awyan, where the marked portion of the boundary begins. Thence the frontier goes due east for 860 yards, and then turns due south to a point 930 yards due east of the cairn on the summit of the northernmost hillock of the Qurun Mutarih Basita feature, the whole of which belongs to Abu Dhabi. From this point the line runs on a bearing of 235° to the northern extremity of the ridge Qurun Hazam, and then on a bearing of 214 to the point where the main track running north from Sa'ara to Mahadha crosses the Falaj Umm al Shatarain, At this point it turns on to a bearing of 230, running between Sa'ara and Hili across the Falaj Ma'a zami and continuing to the south of Qurun Jiham. Thence the line runs west to Aidan Bin Khanfur (trees) and south to the samr tree east of Aud Al Binaiyya and south to the eastern Aud Muqatara (tree). From here the frontier runs south to the ghafa tree which lies in the sand dunes immediately east of Ghafat Shahin and then east (104) to a point on the northern edge of the sand dune Nadd Al Ghurban. From this point the boundary goes east (75°) to the tree Samrat as Sinah and eastwards 24 yards on the southern side of the Falaj Buraimi to the south of its source (umm leaving the short tributary (sa'ad) in Muscat territory. Thence the line continues eastwards to the north of Nab'a and on east to the well Tawi Ahmad Bin Gawwal, which is divided evenly between the two sides. From here the fontier runs on a bearing of 87° to the north of the crescent shaped hill feature west of the mountains enclosing the Awaina plain, passing 750 yards north of the defunct Awaina well and continuing straight to the summit of the ridge separating the Awaina plain from the Wadi al Ain. The border then runs along the crest of this ridge to its extreme southerly point, Khatam Ash Shikla on the Buraimi - Wadi
