Information about the city Cerro de Pasco
Cerro de Pasco (population 70,000) is a city in central Peru, located at the top of the Andean mountains. It is the capital of the Pasco region, and an important mining center. At 4,330 metres (14,210 ft) elevation, it is one of the highest cities in the world, and the highest or the second highest city with over 50,000 inhabitants, with elevation reaching up to 4,380 m in the Yanacancha area. It is connected by road and by rail to the capital Lima, as far as 300 km.
Cerro de Pasco became one of the world's richest silver producing areas after silver was discovered there in 1630.[2] It is still an active mining center. The Spanish mined the rich Cerro de Pasco silver-bearing oxide ore deposits since colonial times. Sulfide minerals are more common in the Atacocha district however.
Francisco Uville arranged for steam engines made by Richard Trevithick of Cornwall, England, to be installed in Cerro de Pasco in 1816 to pump water from the mines and allow lower levels to be reached. However, fighting in the Peruvian War of Independence brought production to a halt from 1820 to 1825. Three major mines in the area include the Machcan, Atacocha, and Milpo. SIlver ore occurs in hydrothermal veins or as sulfides and clay minerals replacing the Jurassic Pucara limestone. Porphyry dacite stocks are found intruded near the Atacocha and Milpo mines along the Atacocha Fault. Compania Minera Atacocha started operations at the Atacocha Mine in 1936. Ore minerals include galena and sphalerite.
At 4,330 metres (14,210 ft) above sea level, Cerro de Pasco has an (E) Alpine Climate (the average temperature of the warmest month is lower than 10 °C (50 °F)), the city is one of the largest in the world with this classification. Temperatures are too cold to allow for tree growth in and around the city giving the countryside its barren appearance. Cerro de Pasco has humid summers, dry winters and chilly to cold temperatures throughout the year. Snowfall occurs annually.
Information about the city Ancash
Ancash is a region of northern Peru. It is bordered by La Libertad Region on the north, Huánuco and Pasco regions on the east, the Lima Region on the south, and the Pacific Ocean on the west. Its capital is the city of Huaraz, and its largest city and port is Chimbote. The name of the region originates from the Quechua word anqash (light, of little weight), from anqas (blue) or from anka (eagle). Ancash is a land of contrasts: it features two great longitudinal valleys, which combine the mountain characteristics of the Callejón de Huaylas (Alley of Huaylas) with the sylvan ones of the Alto Marañón. Miles of sandy beaches and the blue waters of the Pacific. The territory of the coast, high plateaux and Andean punas of the Ancash Region are flat, while the rest of the territory, in the Andes, is very rough. In the west, slopes with strong declivity form narrow canyons with abrupt and deserted sides. The rough territory of the region is crossed by two mountain ranges: on the western side, the Cordillera Negra (Spanish for "black mountain range"), which has peaks without glaciers, and on the eastern side, the Cordillera Blanca ("white mountain range"), which has many peaks covered with snow and ice, such as the Huascarán and the Alpamayo. Between these two mountain ranges, the Santa River flows through the so-called Callejón de Huaylas. This valley narrows to form the Cañón del Pato ("duck canyon"). Also along the Pacific slopes, the Santa River has shaped a wide valley in the punas which narrows into the Cordillera Negra, where the Cañón del Pato canyon was formed. The snow-covered peak of Huascarán, highest peak of Peru and second of the Americas, reaches a height of 6,768 m (22,205 ft, 4.2 miles) and contrasts with the 6,263 m (20,548 ft) deep trough of Chimbote found in the ocean west of Ancash. Remnants of glaciers created many lakes such as Llanganuco Lakes and Lake Parón. Following the Pan-American Highway north from Lima, the territory of the region of Ancash begins just beyond the Fortress of Paramonga, between wide fields of sugarcane, and across the Fortaleza River, 206 kilometres (128 mi) from Lima. Along the coast of Ancash, from the Fortaleza River to the Santa River, the Pacific exerts great influence. The Peruvian current and the El Niño current exert considerable and sometimes tragic effect on local lives and regional economies. Normally, the Peruvian current, also known as the Humboldt Current, brings cold water and large numbers of fish. With the development of the shoals of anchoveta, the Ancash ports and creeks became commercial fishing centers. During the 1950s, the bay of Chimbote was the top fishing port of the world. However, when warmer waters from the north, such as the current of El Niño, bring catastrophic rains to the coast and sea, the shoals of anchoveta disappear, leaving the fishing fleets plants paralyzed, and flooding rivers cause serious damage to the lands and cities. The cycles of these two sea currents that affect Peru are hard to predict. Further north along the Pan-American highway, numerous islands and islets dot the sea near the coast. Most are home only to guano seabirds. From south to north, the most important islands include Tortuga Island (Turtle Island), La Viuda Island (The Widow Island), Isla Blanca (White Island) and Santa Island (Holy Island). The coastal region of Peru includes many peninsulas, creeks, warm bays and sand beaches, full of color. Because of the lack of roads and difficult terrain, many of these are inaccessible by land. The most important beaches include Grande Beach, La Gramita Beach and Las Salinas Beach. Much of this coast is a monotonous stretch of huge sand deserts, a common denominator in all Peruvian coastal regions because of the influence of the Humboldt Current. Along the rivers, there are green valleys, cultivated mainly with sugarcane, rice and cotton. From south to north, the main rivers of the Ancash coast are the following: Huarmey, Culebras, Casma, Sechín, Nepeña, Lacramarca and Santa. Of these rivers, the only one with water year-round is the Santa River. Its sources are the glaciers and lakes of the Cordillera Blanca. The other rivers, as with most rivers of the Peruvian coast, are intermittent, depending on the highland rains or the advance of El Niño.
