[city] Macas is the capital of Morona Santiago province in southeastern Ecuador. The city is also the seat of the county Morona. Known as the `Emerald of the East` due to its location east of the Andes mountains, Macas lies in the Upano Valley overlooking the Upano river. The city has a population of 14,054 inhabitants and along with Tena a...
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http://en.wikipedia.org/wiki/Macas_(city)

town, southeastern Ecuador. It lies on the Upano River along the eastern slopes of the Andes, at an elevation of 3,445 feet (1,050 m). Founded by the ...
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http://www.britannica.com/eb/a-z/m/2
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