ocr: The goverment is resurfacing some of the road network (most is unpaved and subject to landslides during the rains), . andrebuilding bridges destroyedin the guerrilla war with - "Sendero Luminoso." - Work has begun on a transcontinental highway from Ilo,afree port on the Pacitic, via Puerto Suarez in Bolivia, to the port ofPortos in Brazil. The two rail networks, the Central and Southern, are - as yet unconnected. The La Oroya-Huancayo line is the world's highest stretch of standard-gauge railroad. River transportation provides major access to Iquitos - in Amazonia. There are over 130 airports.