Geography of Peru of 1.57%. Lima forms part of the Largest cities in the Americas, and holds 31.7% of the country's population. The dense concentration of the population size of Peru is 25 people/km² or 57/mi². Lima is a pull factor that draws millions of Peruvians from the suburbs to the capital. This urban inland migration is the result of sprawling around Lima. These sprawling places are known as “Pueblos Jóvenes”. The young towns and Lima make up the metropolitan area that extend 125 miles. The urban growth brings issues to the metropolitan area and the environment. Lima is the most polluted city
Rioja, Peru boats, canoes and rafts use the Mayo, Tonchima and Negro rivers for small cargo. Rioja, Peru Rioja is the capital of Rioja Province in the San Martín Region in northern Peru. It is situated to the west of Moyobamba. There are 24,263 inhabitants according to the 2007 census. The town is 848 metres above sea level and has a semi-humid subtropical climate. During the period of the Incas, the Rioja Province was inhabited by two tribes, the Uquihuas and the Chepenes. At the end of the 16th century, one of the first Catholic missionaries arrived at Uquihua. Rioja was founded