At noon we camped three hours and took luncheon at Mekseh, near the junction of the Lebanon Mountains and the Jebel
el Kuneiyiseh, and looked down into the immense, level, garden-like Valley of Lebanon.
It concentrates mainly on the Maastrichtian (latest Cretaceous) Qahlah and Simsima Formations and the overlying Palaeocene Muthaymimah Formation at Jebels Rawdah, Buhays and Faiyah (Figs.
Whilst Jebels Buhays and Faiyah are located within the UAE, Jebel Rawdah is located in Oman and it is necessary for individuals to display their passports (not copies of) at the Omani border post along the road to Hatta from Al Madam although no visa is required.
All three jebels are eroded remnants of anticlinal structures but Jebel Rawdah also includes a syncline.
Jebels Thanais and Aqabah constitute remnants of the northern plunge.
This jebel is located on the northern side of the highway from Al Madam to Hatta, 15 kms east of Al Madam.
From the Hatta road, the jebel is best approached by driving north along dirt tracks across the core of the eroded anticline towards the lowest point of the ridge (Fig.
The northern limb of the syncline is accessible by vehicles along a dirt track around the western side of the jebel and has been a fruitful site for the collection of echinoid specimens by palaeontologists of the Natural History Museum, London.
The Muthaymimah Formation is well exposed in all the valleys around the southern side of Jebel Buhays.
This jebel is a ridge located immediately north of the Jebel Buhays anticline again on the western side of the Al Madam - Dhaid highway, 17 kms north of Al Madam.