  guinea is a country on the coast of west africa and is bordered by guinea-bissau, senegal, mali, cÃ´te d'ivoire, liberia, and sierra leone. guinea is divided into four geographic regions: a lowland belt running north to south behind the coast (lower guinea), which is part of the guinean forest-savanna mosaic ecoregion; the pastoral fouta djallon highlands (middle guinea); the northern savanna (upper guinea); and a southeastern rain-forest region (forest guinea). ==location== guinea is in western africa, bordering the north atlantic ocean, between guinea-bissau and sierra leone. its geographic coordinates are . guinea's total area is 245,857&nbsp;kmÂ², comprising 245,857&nbsp;kmÂ² of land and 0&nbsp;kmÂ² of water. guinea's land boundaries span a total of 3,399&nbsp;km: with cÃ´te d'ivoire 610&nbsp;km, guinea-bissau 386&nbsp;km, liberia 563&nbsp;km, mali 858&nbsp;km, senegal 330&nbsp;km, and sierra leone 652&nbsp;km. it has a 320-km coastline, and claims an exclusive economic zone of , with a territorial sea of . ==climate== thumb|450px|guinea's topography. the coastal region of guinea and most of the inland have a tropical climate, with a monsoonal-type rainy season lasting from april to november, relatively high and uniform temperatures, southwesterly winds, and high humidity. the capital conakry's year-round average high is , and the low is . conakry's average annual rainfall is . sahelian upper guinea has a shorter rainy season and greater daily temperature variations. there is a dry season (december to may) with northeasterly harmattan winds. == rivers and water ==  the niger river, the gambia river, and the senegal river are among the 22 west african rivers that have their origins in guinea. ==resources and environment== the country's natural resources include bauxite, iron ore, diamonds, gold, uranium, hydropower, and fish. it has 2% arable land but no permanent cropland; 22% of its area is permanent pasture, and 59% is forest or woodland as of 1993. 930&nbsp;kmÂ² (1993 est.) of land is irrigated. === environmental issues === current environmental issues in guinea include: deforestation; inadequate supplies of potable water; desertification; soil contamination and erosion; and overfishing and overpopulation in forest regions. guinea is party to the following international environmen
Geography_of_Guinea