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Great Rift Valley
(Encyclopedia)Great Rift Valley, geological fault system of SW Asia and E Africa. It extends c.3,000 mi (4,830 km) from N Syria to central Mozambique. The northernmost extension runs S through Syria and Lebanon, th...rift valley
(Encyclopedia)rift valley, elongated depression, trough, or graben in the earth's crust, bounded on both sides by normal faults and occurring on the continents or under the oceans. The central flat block forming th...Rift Valley fever
(Encyclopedia)Rift Valley fever, acute viral disease that affects domestic livestock and can be transmitted to humans. The disease is most common in E and S Africa, but also occurs widely in sub-Saharan Africa and ...Great Valley
(Encyclopedia)Great Valley: see under Appalachian Mountains. ...Great Appalachian Valley
(Encyclopedia)Great Appalachian Valley: see under Appalachian Mountains. ...Ethiopian Highlands
(Encyclopedia)Ethiopian Highlands, rugged plateau region of E Africa, covering about two thirds of Ethiopia. It is divided into two massifs by the Great Rift Valley; the Amhara, or Ethiopian Plateau, is the larger ...Great Glen
(Encyclopedia)Great Glen or Glen More, valley, 60 mi (97 km) long, Highland, N central Scotland, extending from Moray Firth SW to Loch Linnhe. It was formed by a fault in the earth's surface. Loch Ness, Loch Oich, ...Cumberland Valley
(Encyclopedia)Cumberland Valley, 75 mi (121 km) long and from 15 to 20 mi (24–32 km) wide, part of the great Appalachian valley, between the Potomac and Susquehanna rivers, W Md. and S Pa. It is a fertile farming...Danakil
(Encyclopedia)Danakil, desert region, NE Ethiopia and neighboring portions of Djibouti and Eritrea, c.350 mi (560 km) long and 50–250 mi (80–400 km) wide, between the gulfs of Zula and Tadjoura. It is bordered ...Natron, Lake
(Encyclopedia)Natron, Lake nāˈtrən [key], c.35 mi (60 km) long and 15 mi (20 km) wide, in the Great Rift Valley, E Africa, on the Kenya-Tanzania border. It has soda, salt, and magnesite deposits. ...Browse by Subject
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