Rio Grande is the major river of the southwestern United States and northern Mexico, serving as a critical water source and natural border. Its course passes through _Big Bend and Mesilla Valley before reaching the Gulf of Mexico_.

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Geography

ContinentNorth America
RegionNorth America
SubregionSouthwest United States & northern Mexico
CountryUnited StatesMexico
StateColoradoNew MexicoTexasCoahuilaDurangoChihuahua
CountyHidalgo CountyEl Paso CountyLiberal CountyPresidio CountyC BOMexico
DistrictBig BendMesilla ValleyRio Grande Valley
CityEl PasoCiudad Juárez
NeighborhoodLindberghSagrario
TimezoneAmericaChicago
Latitude31.2
Longitude-106.5
Maps
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Rio Grande is a transboundary watercourse rising in the southwestern reaches of Colorado and flowing southward for over 3,000 km (1,850 mi) to the Gulf of Mexico. It marks part of the Mexico–United States border from El Paso-Ciudad Juárez to the Texan-­Mexican frontera near Presidio and Reynosa. The river passes through diverse landscapes including arid plains, canyonlands like Big Bend National Park, and the fertile Mesilla Valley floodplain. Historically vital for indigenous peoples, settlers, and trade, today it sustains cities, agriculture, and ecosystems while facing water management challenges.

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