1892 Perron map MOUTH OF RIO GRANDE, TEXAS / MEXICO, #100

Description: Perron16_100 1892 Perron map MOUTH OF RIO GRANDE, TEXAS / MEXICO, #100 Nice map titled Bouches du Rio Grande, from wood engraving with fine detail and clear impression. Overall size approx. 18 x 15.5 cm, image size approx. 10 x 8 cm. From La Nouvelle Géographie universelle, la terre et les hommes, 19 vol. (1875-94), great work of Elisee Reclus. Cartographer is Charles Perron. Rio Grande Spanish Río Grande del Norte, or (in Mexico) Río Bravo, or Río Bravo del Norte fifth longest river of North America, and the 20th longest in the world, forming the border between the U.S. state of Texas and Mexico. Rising as a clear, snow-fed mountain stream more than 12,000 feet (3,700 metres) above sea level in the Rocky Mountains, the Rio Grande descends across steppes and deserts, watering rich agricultural regions as it flows on its way to the Gulf of Mexico. The total length of the river is about 1,900 miles (3,060 kilometres). The area within the entire watershed of the Rio Grande is some 336,000 square miles (870,000 square kilometres). Because a large proportion of the river's basin is arid or semiarid, however, only about half of the total area, or about 176,000 square miles, actually contributes to the river's flow. From its sources in the San Juan Mountains of southwestern Colorado, the Rio Grande flows to the southeast and south for 175 miles in Colorado, southerly for about 470 miles across New Mexico, and southeasterly for about 1,240 miles between Texas and the Mexican states of Chihuahua, Coahuila, Nuevo León, and Tamaulipas to the Gulf of Mexico. Its early course follows a canyon through forests of spruce, fir, and aspen into the broad San Luis Valley in Colorado, after which it cuts the Rio Grande Gorge and White Rock Canyon of northern New Mexico and enters the open terrain of the Basin and Range and the Mexican Plateau physiographic provinces. There, declining elevation, decreasing latitude, and increasing aridity and temperature produce a transition from a cold steppe climate with a vegetation of piñon pine, juniper, and sagebrush to a hot steppe and desert climate characterized by mesquite, creosote bush, cactus, yucca, and other desert plants. Shortly before entering the Gulf Coastal Plain, the Rio Grande cuts three canyons between 1,500 and 1,700 feet in depth across the faulted area occupied by the “big bend,” where the Texas side of the river comprises the Big Bend National Park. Along the remainder of its course the river wanders sluggishly across the Gulf Coastal Plain to end in a fertile delta where it joins the Gulf of Mexico. The principal tributaries of the Rio Grande are the Pecos, Devils, Chama, and Puerco rivers in the United States and the Conchos, Salado, and San Juan in Mexico. The peak of flow may occur in any month from April to October. In the upper reaches of the Rio Grande it usually is in May or June because of melting snow and occasional thunderstorms, whereas the lower portion commonly experiences its highest water levels in June or September because of the occurrence of summer thunderstorms. It has been estimated that the Rio Grande has an average annual yield of some 2.6 million acre-feet (3.2 billion cubic metres), of which about a third reached the gulf before the building of the Falcon Dam, upstream from Rio Grande City, in 1953; the river's average discharge rate is now about 3,000 cubic feet (85 cubic metres) per second.

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End Time: 2024-11-26T16:48:29.000Z

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