Independence Day of the Republic of Panama
Panama, country of Central America located on the Isthmus of Panama, the narrow bridge of land that connects North and South America. Embracing the isthmus and more than 1,600 islands off its Atlantic and Pacific coasts, the tropical nation is renowned as the site of the Panama Canal, which cuts through its midsection. It is equally well known for its natural beauty, for its diverse plant and animal life, including hundreds of bird and tree species, and for its vibrant music and culture.
The home of several Native American peoples, such as the Guaymí, Kuna, and Chocó, Panama became the first Spanish colony on the Pacific. Celebrated as “the door to the seas and key to the universe,” it served in the 1530s as the staging point for the Spanish conquest of the Inca empire, and until the 19th century it was a transshipment point for gold and silver destined for Spain. With the independence of Colombia, which once controlled Panama, from Spain, Panama came to serve as another staging point, this time for oceangoing migrants to the gold fields of California.
Since 1914 the 51-mile- (82-km-) long Panama Canal, which connects the Atlantic and Pacific Oceans, has afforded a long-sought shortcut for shipping and assures the country’s standing as one of the most strategic transportation hubs of the world. The canal also secures Panama’s ongoing role in international affairs and world commerce. The United States relinquished jurisdiction of the Panama Canal on December 31, 1999, marking an unprecedented shift in Panamanian society. For the first time in nearly a century as an independent nation, Panama controlled the entirety of its national territory.
Panama enjoys a lively mix of cultural influences, expressed in the country’s cuisine, artwork, music, and literature. Its capital, Panama City, is located on the Pacific coast just east of the canal. A cosmopolitan city where skyscrapers tower above whitewashed bungalows, it enjoys a handsome setting and a growing importance as a commercial and financial services centre for the region. However, its economic progress has been hampered periodically by environmental problems and political turmoil.
Panama is bounded to the north by the Caribbean Sea (an extension of the Atlantic Ocean) and to the south by the Pacific Ocean. It has an elongated S shape, with its Caribbean coastline stretching some 800 miles (1,290 km) and the Pacific coast some 1,060 miles (1,700 km); however, a line drawn from the Costa Rican frontier in the west to the Colombian border in the east would extend only 480 miles (770 km). The shortest distance across the isthmus is about 30 miles (50 km), from the mouth of the Nergalá (Necategua) River, which flows into the Gulf of San Blas on the Caribbean shore, to the mouth of the Chepo River on the Pacific coast. Nearly as narrow is the portion of the isthmus traversed by the Panama Canal.
A central spine of mountain ranges extends almost the entire length of Panama, dividing the country into Atlantic- and Pacific-facing slopes. The two principal ranges, the Tabasará Mountains (Cordillera Central) in the west and the Cordillera de San Blas in the east, are separated near the centre of the country by a saddle of lower land. This depression (the Panama Canal site) divides the country again—roughly into western and eastern halves. Of the four quadrants thus formed, the southwestern has the largest number of settlements; however, the environs of the canal account for most of Panama’s population and commerce. The country’s highest peak is an inactive volcano, Barú (Chiriquí), which reaches an elevation of 11,401 feet (3,475 metres).
Paralleling the principal mountain chains, a lower mountain arc extends along Panama’s southern coast. It appears only in well-separated segments—for example, on Azuero Peninsula as the Canajagua Massif and in eastern Panama as the Sierra de Jungurudó, Sapo Mountains, and the Majé Mountains. The highlands and mountains are made up primarily of igneous (volcanic) rocks.
The lowlands include the plains of Panamá and Chiriquí provinces, the plains and hills of Colón province, the Chepo and Chucunaque river basins in the east, and the narrow northeastern plains of the Caribbean region. Sedimentary rocks such as slates and shales underlie most of the lowland zones.
The Pacific coastline is extended by the Azuero Peninsula and the Gulf of Panama and by numerous headlands and bays, whereas the largest embayment on the Caribbean side is Chiriquí Lagoon. The Pacific coastline is more indented and irregular, and its continental shelf is much wider than that on the Atlantic side. In addition, most of the republic’s more than 1,600 islands lie off its Pacific coast; they include the Perlas Archipelago (Pearl Islands) and the islands of Taboga, Cébaco, Parida, Jicarón, and Coiba, the largest. The principal archipelagoes off the Caribbean coast are those of Bocas del Toro and San Blas.
Of Panama’s many short rivers, those that flow to the Caribbean include the Sixaola, Changuinola, Indio, Cricamola, La Miel, and Chagres. Rivers flowing to the Pacific include the Chiriquí Viejo, Santa María, Chepo, Chucunaque, and Tuira. During the rainy season the Tuira is navigable for some 40 miles (60 km) and the Chepo for 20 miles (30 km). Water in the Panama Canal does not flow from coast to coast; rather, it is released from the rain-fed Gatún and Alajuela (Madden) lakes in the central highlands. In effect, the water flows to both coasts simultaneously via the canal’s system of locks and dams. For details on the engineering and operation of the waterway, see Panama Canal.
Soils are commonly reddish to brown and rich in clay. They vary in fertility, and in many areas crops can be grown continuously only if fertilizers are applied. On poorer soils, a shifting subsistence agriculture is practiced. Under this system small plots are cleared, cropped for a few years, then abandoned until their natural fertility is restored—a practice called roza in Panama.
Areas of alluvial soils (which develop from clay, silt, sand, and gravel deposited by streams) are especially fertile but are limited to the lower parts of river valleys. The commercial banana plantations around Puerto Armuelles and in western Bocas del Toro province are mainly on alluvial soils. Some of the soils along the inland edges of coastal mangrove swamps have also proved productive. In some areas, exceptionally fertile soils have developed from volcanic ash.
Climatic conditions are markedly different on the Atlantic and Pacific sides of western Panama, especially in the amount and seasonal distribution of rainfall. On the Caribbean slopes of the Tabasará Mountains, which face the rain-bearing trade winds, average rainfall is approximately twice as heavy as on the leeward Pacific slopes. The Caribbean coast receives 60–140 inches (1,500–3,550 mm) per year, while the more populated Pacific region receives 45–90 inches (1,140–2,290 mm). Furthermore, on the Caribbean side rain falls almost throughout the year, while on the Pacific side there is more seasonal variation—in Chiriquí province, for example, there is a pronounced dry season lasting from January to April, and March is usually the driest month. In accordance with this rainfall pattern, tropical rainforests are typical on Caribbean slopes, whereas savannas (tropical grasslands) are more common southward in the seasonally dry areas between the Tabasará Mountains and the Pacific shoreline. Toward the Colombian border both sides of the isthmus have year-round rainfall.
Because of Panama’s tropical location, the mean temperature of the coldest month seldom drops below 78 °F (26 °C) on either coast. The Panamanian mountain slopes create three climatic zones: a low, hot zone, lying at elevations below 2,300 feet (700 metres), which makes up nearly nine-tenths of the country’s territory; a temperate zone, at elevations ranging from 2,300 to 4,900 feet (700 to 1,500 metres), which accounts for most of the rest of the land; and a tiny cold zone, lying above 4,900 feet. Each zone has its characteristic plant growth and crops; cacao and bananas are produced mainly in the hot lowlands, whereas coffee is grown in the temperate zone.