The Silver Triangle refers to the Andes and Amazon region where Colombia, Peru, Bolivia and Brazil are concentrated in drug production in Latin America. It has been known as the Silver Triangle since the 1970s. With a total area of more than 200000 square kilometers, this area is famous for its rich production of cocaine, marijuana and other drugs. It is one of the three major drug sources in the world.
Peru is the world's largest producer of cocaine, with an area of coca cultivation of more than 80000 hectares and an annual output of about 60000 tons of coca. Extracting cocaine from coca leaves is the largest agricultural product exported by Peru, earning US $100 million in foreign exchange every year. Bolivia has an annual output of about 50000 tons of coca leaves, ranking second in the world. According to official statistics of Bolivia, among the 6 million people in the country, about 500000 farmers are engaged in coca leaf cultivation and processing, and no less than 100000 are engaged in coca leaf trafficking and trade. The annual income from coca leaf export is generally about US $1 billion. In 1986, with a bumper harvest of coca leaves, the country made a profit of US $3 billion from the cultivation, processing and trafficking of cocaine, four times higher than the country's export income in that year.
Colombia is the third cocaine producing area, with an annual output of about 12000 tons of coca leaf, ranking third in the world. Ecuador is the fourth cocaine producing area, with an annual output of about 900 tons of coca leaves, ranking fourth in the world. In total, the region produces 120000 tons of coca leaf every year, becoming the main base for the production, processing and trafficking of cocaine in the world.
Colombia is also the world's largest producer of cannabis, with an annual output of 7500 ~ 9000 tons, ranking first in the world. At the same time, Colombia is also a coca leaf production base. Marijuana produced here and cocaine extracted from coca leaves are mainly smuggled into the United States. According to the estimates of the US drug enforcement organization, Colombia sells 89000 tons of marijuana and more than 50 tons of cocaine to the United States every year. So Colombia is the largest drug supplier to the United States. Colombia's production of cannabis and cocaine is second only to coffee and has become the country's second major export crop. In addition, Colombia produces a drug called "brandanga". This drug is an alkaloid extracted from Savannah jigo leaves and a thorn apple. It is white powder, but unlike other alkaloids, it is not a stimulant, but a sedative with strong anesthetic.
Mexico is the second marijuana producing area. According to relevant records, in 1984, Mexico produced 5850 tons of marijuana, second only to Colombia, ranking second in the world. In addition, Mexico also grows 4100 hectares of opium, with an output of more than 20 tons. The marijuana and heroin extracted from opium produced in Mexico are also mainly smuggled into the United States. Jamaica is the third cannabis producing country.
Although Jamaica is a small island country, its annual output of marijuana is as high as 3000 tons, ranking third in the world after Colombia and Mexico. The country provides 2000 tons of cannabis to the United States every year. The United States is the fourth marijuana producing area, with an annual output of 1650 tons of marijuana, accounting for about 11% of U.S. consumption. The cultivation places are mainly California and Hawaii. The above four producing areas have an annual output of about 19000 tons of marijuana, becoming an important base for marijuana production and sales in the world.