Inca ruins of Tiwanaku in Bolivia. United Nations Education, Science and Culture Organization (UNESCO) sends archaeologists to the ancient Inca ruins. Articles of lost civilization are found during the square mile excavation. Workers dig with shovels. A man displays an article. Men pull out a three ton stone with ropes. 'Gateway of the Sun' in view.
Tin mining in Bolivia. Workers loaded on a train as it enters a tin mine. An electric train loaded with ore of tin moves out of the mine.
Tin mining in Bolivia. Men wearing helmets with lights work on a hose. A miner sprays water with the hose. Miners with helmets operate a drilling machine as they drill into the roof of the mine.
Tin mining in Bolivia. A view of the road between the hills. Houses and a tin mine in a valley. Mountains in the background. An American Army pickup truck moves through muddy water and rough road. Men loaded onto the truck. The truck moves down a narrow road and crosses a civilian truck.
Construction of roads in Bolivia. A worker uses a pick axe to construct a culvert. Two men shape large stone blocks with hammers. A man talks to them. A worker reads a propaganda comic booklet. A Caterpillar bulldozer levels the earth. A man operates the Caterpillar bulldozer.
Construction of roads in Bolivia. A stream at the bottom of a valley. Workers construct a road supporting a wall on the side of a steep cliff. Men work with pick axes on the side of the cliff. A man smokes a cigar as he supervises the work. A sign in Spanish about the road construction project and a map of the road at the bottom.