But, although international airlines connect La Paz with cities in North and South America and in Europe, there are many parts of Bolivia that still lack easy access to the rest of the nation. Industries Mining is Bolivia's leading industry, with about 70 percent of the nation's export income normally coming from minerals. The main mining area is in the Cordillera Real from Oruro to Potos . Zinc is the country's chief mineral, and tin, lead, silver, tungsten, copper, antimony, bismuth, and gold are also mined for export. There are oil and natural gas fields in the Camiri-Santa Cruz area.
Production meets domestic needs, and some oil is exported.
A natural gas pipeline extends from Santa Cruz to Buenos Aires, Argentina, and an oil pipeline extends from Sica Sica to the Chilean port of Arica. Another natural gas pipeline is being constructed. Bolivia has few factories. Supplies of raw materials, fuel, and trained workers and the capacity of the transportation system are inadequate for industrial development. The factories that there are, however, produce such goods as textiles, cement, dairy products, ceramics and plastics, and refined sugar.