The Demerara River is a river in eastern Guyana that rises in the central rainforests of the country and flows to the north for 346 kilometres without tributaries until it reaches the Atlantic Ocean. Georgetown, Guyana's largest seaport and capital, is situated on the river's mouth. The Demerara's estuary is narrow and the flowrate is rapid. This scouring action maintains a 5-6 metre deep direct channel to the ocean. For the Second World War frigate class, see River class frigate The Murray River in Australia A waterfall on the Ova da Fedoz, Switzerland A river is a large natural waterway. ... The Co-operative Republic of Guyana is a nation along the northern coastline of South America. ... A rainforest is a forested biome with high annual rainfall. ... A kilometre (American spelling: kilometer) (symbol: km) is a unit of length equal to 1000 metres (from the Greek words khilia = thousand and metro = count/measure). ... A tributary (or affluent or confluent) is a contributory stream, a river that does not reach the sea, but joins another major river (a parent river), to which it contributes its waters, swelling its discharge. ... The Atlantic Ocean is Earths second-largest ocean, covering approximately one-fifth of its surface. ... Georgetown, estimated population 75,000 (1985), is the capital and largest city of Guyana. ... For the Second World War frigate class, see River class frigate The Murray River in Australia A waterfall on the Ova da Fedoz, Switzerland A river is a large natural waterway. ... Estuaries and coastal waters are among the most productive ecosystems on Earth, providing numerous ecological, economic, cultural, and aesthetic benefits and services. ... metre or meter, see meter (disambiguation) The metre is the basic unit of length in the International System of Units. ...

The Demerara's width and depth allow oceangoing vessels to navigate up to Linden (105km from the mouth), while smaller vessels may reach up to Malali (245km from the mouth). Beyond Malali, numerous rapids make further upstream travel impossible. A rapid is a section of a river where it loses elevation over a relatively short distance (that is, the stream gradient is locally steepened), causing an increase in water flow and (usually) turbulence. ...

A Dutch colony of the same name (see Demerara) was situated along the river's banks. The colony founded the sugarcane industry that continues to thrive today. Sugar from this industry is used to make the widely exported El Dorado Rum [1] (http://www.eldorado-rum.com/). Bauxite is also mined around the Demerara, and Linden is a major export centre. During the 17th century, Dutch traders established trade posts and plantations throughout the Americas; actual colonization, with Dutch settling in the new lands was not as common as with settlements of other European nations. ... Demerara was one of the original British colonies that was joined into the colony of British Guiana, now Guyana. ... Species Ref: ITIS 42058 as of 2004-05-05 Sugarcane is one of six species of a tall tropical southeast Asian grass (Family Poaceae) having stout fibrous jointed stalks whose sap at one time was the primary source of sugar. ... Bauxite Bauxite is a naturally occurring, heterogeneous material composed primarily of one or more aluminium hydroxide minerals, plus various mixtures of silica, iron oxide, titania, aluminosilicate, and other impurities in minor or trace amounts. ... Economics In economics, an export is any good or commodity, shipped or otherwise transported out of a country, province, town to another part of the world, typically for use in trade or sale. ...