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Stewart, river, Canada

(Encyclopedia)Stewart, river, 331 mi (533 km) long, rising in the Mackenzie Mts., central Yukon, Canada, and flowing generally W to the Yukon River S of Dawson. The river is navigable for most of its length and is ...

Si, river, China

(Encyclopedia)Si, river, China: see Xi.

Urubamba

(Encyclopedia)Urubamba o͞oro͞obämˈbä [key], river, c.450 mi (720 km) long, rising in the Andes Mts., S Peru, and flowing generally north to join the Apurímac River to form the Ucayali. The Urubamba is extensi...

Pinzón, Martín Alonso

(Encyclopedia)Pinzón, Martín Alonso märtēnˈ älōnˈsō pēnthōnˈ [key] d.1493, Spanish navigator. The commander of the Pinta on Columbus's first voyage to the New World in 1492, he was already an experience...

Burle Marx, Roberto

(Encyclopedia)Burle Marx, Roberto, 1909–1994, Brazilian landscape architect. As an art student he visited (1928) Berlin's botanical gardens and became interested in tropical plants. Upon returning to Brazil (1930...

Uruguay , river, South America

(Encyclopedia)Uruguay yo͝oˈrəgwā, gwī, Span. o͞oro͞ogwiˈ, o͞oro͞owīˈ [key], river, c.1,000 mi (1,610 km) long, rising in S Brazil and flowing in an arc W, SW, and S to the Río de la Plata, an estuary; ...

Rio Branco

(Encyclopedia)Rio Branco, city (1996 pop. 228,907), capital of Acre state, NW Brazil, on the Acre River. Rubber and Brazil nuts are its chief products; there is also some farming. Rio Branco has air connections wit...

Guiana

(Encyclopedia)Guiana gēănˈə, –änˈ– [key], region, NE South America. It faces the Atlantic Ocean on the north and east and is enclosed on the west and south within a vast semicircle formed by the linked ri...

Casiquiare

(Encyclopedia)Casiquiare käsēkyäˈrā [key], river, c.100 mi (160 km) long, S Venezuela. Also called the Canal Casiquiare, it is a branch of the Orinoco and flows SW to the Río Negro, thus linking the Orinoco a...

açaí

(Encyclopedia)açaí äˌsäēˈ [key], tree, Euterpe oleracea, of the family Arecaceae (palm family) and its fruit, grown chiefly in Pará state in the Amazon region of Brazil. The tre...