Pucallpa (, ; Shipibo: May Ushin) is a city in eastern Peru located on the banks of the Ucayali River, a major tributary of the Amazon River. It is the capital of the Ucayali region, the Coronel Portillo Province and the Calleria District. This city is categorized as the only metropolis in Ucayali, being the largest populated center of the region. According to the Instituto Nacional de Estadística e Informática, it is the tenth most populated city in Peru and second largest in the Peruvian Amazon after Iquitos. In 2013 it housed a population of 211,611 inhabitants. Although originally located in the district of Callería, in the 1980s it formed a conurbation with the towns of Puerto Callao (district of Yarinacocha) and San Fernando (district of Manantay, created in 2000). Most of the transport to Pucallpa is done through the Ucayali River, located in the central east of Peru and which contains the second most important river port in the Amazon (behind Iquitos). The Federico Basadrees highway is the main center of land transportation and connects the northwest of the city with the Captain Rolden International Airport (Aeropuerto Internacional Capitán FAP David Abensur Rengifo), where flights are made to Brazil. The economy of Pucallpa is based on trade, the timber industry and tourism. Among the main attractions of the city include ecological tourism, such as the Parque Natural, or cultural tourism, in the case of shamanism. Its main economic activities are fishing, agriculture, livestock and timber extraction. In addition, a small oil refinery near the Pachitea River and a gas refinery in the Curimaná District supply fuel to the city and the center of the country. The first human inhabitants of the region were the Pano, who inhabited the entire length of the Ucayali River and its tributaries three millennia before being colonized. History and transportation Pucallpa was founded in the 1840s by Franciscan missionaries who settled several families of the Shipibo-Conibo ethnic group. For several decades it remained a small settlement as it was isolated from the rest of the country by the Amazon rainforest and the Andes mountain range. From the 1880s through the 1920s a railway project to connect Pucallpa with the rest of the country via the Ferrocarril Central Andino was started and dropped several times until it was finally abandoned. Pucallpa's isolation finally ended in 1945 with the completion of a highway to Lima through