A large northern tributary of the Puelo, the Manso, has its sources in Lake Mascardi and other lakes and streams south-east of the Cerro Tronador, also in Argentina, and flows south-west through the Cordilleras to unite with the Puelo a few miles west of the 72nd meridian.
The Huallaga rises north of Cerro Pasco, and, passing Huanuco, flows northwards on the other side of the Central Cordillera for 300 m.
From this point the line follows the summits of the Cordillera Silillica north to the Cerro Paquiza, on the Tacna frontier, and to the Nevado Pomarape, near the frontier of Peru.
It ascends the Parana to the great falls of Guayra, or Sete Quedas, and thence westward along the water-parting of the Sierra de Maracayu to the cerro of that name, thence northerly along the Sierra d'Amambay to the source of the Estrella, a small tributary of the Apa, and thence down those two streams to the Paraguay.
The Andes lose their majestic height to the northward; and beyond Cerro Pasco the eastern chain sinks into a lower range between the Huallaga and Ucayali.
During the Mexican war he was twice severely wounded in a reconnaissance at Cerro Gordo, 1847, was engaged in the siege of Vera Cruz, the battles of Contreras, Churubusco, and Molino del Rey, the storming of Chapultepec, and the assault on the city of Mexico, and received three brevets for gallant and meritorious service.
In 1848 a Mexican congress met here to ratify the treaty of peace with the United States, and in 1867 Queretaro was the scene of Maximilian's last stand against the republicans (under Escobedo), which resulted in his capture and subsequent execution on the Cerro de las Campanas just N.
The Junin district is the best known and includes the Cerro de Pasco, Yauli, Morococha and Huallay groups of mines, all finding an outlet to the coast over the Oroya railway.
Surveys were completed in 1909 for an extension of the Oroya line from a point on its Cerro de Pasco branch eastward to the Ucayali, and another transandean line frequently discussed is projected from Paita across the Andes to Puerto Limon, on the Maranon-a distance of 410 m.
Of the city of Oaxaca in a knot of sierras, San Felipe del Agua (10,253 ft.) standing on the eastern margin of the beautiful Oaxaca Valley, and the Cerro del Leone, southwest of Tehuantepec, the highest summit in the Sierra Madre del Sur.