=Gebel el Anbat= is a group of lower dark coloured hills forming the south foot hills of Gebel Um el Tiur. Its highest point is 788 metres above sea, while a detached black hill a little west of it on the plain rises to 680 metres above sea, or 175 metres above the plain at its base. These hills are drained by the Wadi el Anbat and other small feeders of Wadi Kharit. =Gebel Um Usher= and =Um Hasidok= are conspicuous peaks on the main watershed ten kilometres east, and twelve and a half kilometres east-south-east respectively of Gebel Abu Hamamid, rising to 1,487 and 1,497 metres above sea-level. They are drained to the south by the Wadi Hilgit lil Kharit, and to the north by the Wadi el Mahali, a feeder of Wadi Huluz. =Gebel el Mahali= is a rather high peak of grey porphyry which forms a northerly extension of Gebel Um Usher, close south of the Wadi Huluz. Its top is 1,112 metres above sea, or 330 metres above the adjacent wadi floor. =Gebel Hamata=, with one exception[106] the highest mountain in the Eastern Desert of Egypt, is situated on the meridian of 35°, in latitude 24° 12′, thirty-three kilometres from the nearest point of the coast and 213 kilometres from the nearest point of the Nile, and rises to an altitude of 1,978 metres above sea-level; the summit is marked by a triangulation beacon, the position of which is latitude 24° 12′ 17″, longitude 35° 0′ 16″. Gebel Hamata lies some five kilometres east of the main watershed, which curiously enough is not always formed by the highest peaks. It is drained principally by the Wadi Huluz, the heads of which almost encircle it. The Wadi Hamata heads in the eastern face of the high ridge which connects Gebels Hamata and Abu Ghusun, and thus only takes a small portion of the drainage of Gebel Hamata itself. Though surrounded by other high mountains, Hamata towers above them so as to be a very conspicuous feature on the sky line from great distances. Looked at from the north or south, it is like a great, rather flat, cone with a smaller cone east of it. The best way to ascend the mountain is from the head of the Wadi el Abiad, that feeder of Wadi Huluz which drains the north face of it. In proceeding up the Wadi el Abiad from Wadi Huluz, one is shut in by high hills on either side till about six kilometres from the mountain; then the wadi opens into a rough plain with low granite hills, and the imposing mass of Hamata springs suddenly into full view. My camels were coaxed on with their loads up this wadi, which becomes very steep and stony as its head is approached, to within two and a quarter kilometres of the summit, where they actually reached an altitude of 1,025 metres above the sea. The ascent of the remaining 953 metres on foot, though tiring, was fairly easy, and occupied less than four hours. The lower third of Hamata is a whitish granite; this gives place higher up to a hard quartz felsite, which rings under the hammer and weathers into rusty brown blocks.