The Republic of Portugal is located in the southwestern part of Europe, in the western part of the Iberian Peninsula, bordered by Spain to the north and east and by Atlantic Ocean to the south and west. The Azores and Madeira Islands in the Atlantic are independent regions of Portugal, considered an integral part of the republic. Portugal administers an overseas territory, Macao (Macao), in eastern Asia, near Hong Kong. Macau is expected to return to Chinese administration in 1999. The total area of ​​metropolitan Portugal, including the Azores (2,247 km2/868 sq mi) and the Madeira Islands (794 km2/307 sq mi), is 92,345 km2 . (35,655 square miles). The capital and largest city is Lisbon. The climate varies in Portugal depending on the altitude you are at. Low temperatures only occur in relatively low southern regions. The average annual temperature north of the Douro River is around 10°C (around 50°F). Between the Tajo and the Douro the temperature is around 16°C (around 60°F). Temperatures in the Guadiana Valley are around 18 C (around 65 F). Rainfall is very abundant, especially in the north. Minerals are Portugal's most valuable natural resources. Much of these resources were developed until after World War II (1939-1945). Some of the mineral resources are coal, copper, gold, iron ore, kaolin, tin and wolframite, which is the source of Acosta 2 tungsten. The most sufficient trees are oak evergreen leaves, cork, poplar and olive. Portugal is also home to many species of wildlife. Some of these wild animals include wolf, lynx, wild cat, fox, wild boar, wild goat, deer and hare. Portugal also has significant hydraulic resources in its mountain rivers and streams. The Portuguese are a combination of several ethnic elements, mainly Iberians, Romans. , Visigoths and later Moors. People still mostly live in rural villages. The population of Portugal, including the Azores and Madeira Islands, is 9,931,045. The overall population density is 108 inhabitants per km². (280 per square mile). Mainland Portugal is divided into 18 districts for administrative reasons: Aveiro, Beja, Braga, Bragnca, Castelo Branco, Coimbra, Évora, Faro, Guarda, Leiria, Lisbon, Porto, Portalegre, Santarém, Setúbal, Viana do Castelo, Villa Real and Viseu. . The Azores and the Madeira Islands each constitute an autonomous region. Roman Catholicism is the faith of more than 94 percent of the Portuguese people. The Constitution guarantees freedom of religion, and some Protestant churches have been established. The official language of the country is Portuguese. Portuguese culture is closely linked to Spanish culture and has been influenced by the three main cultures including