A proposition is now before the public for the construction of the Pan-American railroad, from the Caribbean sea southward to the Argentine Republic to connect with the Peruvian, with the Brazilian, and ultimately with the Argentine roads. The route that seems to be most feasible starts at Cartagena, where there is a splendid bay and harbor, within three days sail from Galveston and six days from New York. It follows the valley of the Magdalena river 800 miles to Dividal, 1700 feet above the sea. Here, near the head waters of the Magdalena, the route crosses the eastern Cordilleras at an elevation of about 6,500 feet to the head waters of the Caqueta, or Yapura, a branch of the Amazon, and thence runs down that river 375 miles to the mouth of the Engarros, only 550 feet above tide-water. From the Caqueta river, the route passes through Ecuador to Iquitos, Peru, crossing fourteen tributaries of the Amazon. From Iquitos the route ascends the Amazon and the Ucayle, one of its southern tributaries, 500 miles to Napal, then continues across the montaña {27} and the numerous valleys of the Amazon about 600 miles, to Santa Cruz in Bolivia, or 2400 miles from Cartagena; while a branch will run up the Apurimac to Cuzco. This road would run for 2000 miles along the foot hills of the Cordilleras, and in these mountains is probably the richest mining region in the world; here gold, silver, copper, lead and coal mines are found. The gold and silver mines do not seem to have been thoroughly explored, although untold millions of the precious metals have been extracted from them. These mines are generally in cold and treeless regions, where coal, labor and food are difficult to obtain; where freights are high and machinery of all kinds most expensive. This road would greatly facilitate the opening and working of these mines, and not only make them profitable but develop a large and lucrative traffic. Much of Bolivia is above the navigable waters of the Amazon, and many of its provinces are now land-locked and almost isolated from communication with the outer world. The proposed road would cross many branches of the Amazon, and thus connect with fifty thousand miles of navigable waters, at least 9000 of which are above Iquitos; and it is claimed that the business from 20,000 miles of navigable waters would find by this route a nearer outlet to Europe and America than by Para. There is every variety of climate on the route. The valley of the Magdalena is sultry; every afternoon the water grows tepid, and the stones burning hot, in the sun's rays. In crossing the Cordilleras the cool breezes of the mountains are met. The road then descends into the valley of the Amazon, through a rich and not unhealthy region, though it has the damp, hot, climate of a tropical country, and thence passes through the montaña district, which is generally high, healthy and fertile.