Umba River (Tanzania)

The Umba River is located in northeastern Tanzania in Tanga Region. It rises in Schageiuforest (Shagayu) in the West Usambara Mountains at 2,000 m altitude and flows on the north side of the mountain range to the east.[1] At Lelwa it empties the Mbalamu River, which comes from the extreme north of the Usambara Mountains, and the Mglumi River into the Umba. Just before the Umba flows into the Indian Ocean, it crosses the border to Kenya. The mouth itself marks the most eastern point on the border between Tanzania and Kenya, which was largely made in a straight line to the northwest towards Lake Victoria in the 19th Century. On the upper reaches of the river in the mid-1960s rich deposits of precious stones, including sapphires and spessartine, were discovered. Also on the river is the Umba River Game Reserve, a wildlife reserve that includes along with the Mkomazi Game Reserve, about 2,600 km².

Umba River
Location
Country	Kenya
County	Kwale County
City	Lunga-Lunga
Country	Tanzania
Region	Tanga Region
Physical characteristics
Source
• location	Usambara Mountains, Tanzania
• elevation	2,000 m (6,600 ft)
Mouth
• location	at Lunga-Lunga in the Indian Ocean, Tanzania
• coordinates	4°40′50″S 39°12′48″E
• elevation	0 m (0 ft)
Basin size	7,130 km2 (2,750 sq mi)
Basin features
Tributaries
• left	Mglumi; Bombo
• right	Mbalamu