Rio grande....If you dont trust this jush go to this site and look your self http://en.wikipedia.org/wiki/List_of_the_ten_longest_Texas_rivers Enjoy :]
The Brazos River is the longest river in Texas. The third longest in the US. For more specifics on it visit:
http://pubs.usgs.gov/of/1987/ofr87-242/
The deepest river in Texas is either the Rio Grande, the Pecos, the Colorado, or the Trinity river.
Rio Grande
uihlhdev
dfff
amazon river
Texas boudaries include Mexico divided by the Rio Grande River, The Gulf of Mexico, Louisiana, Arkansas, Oklahoma, and New Mexico states.
Mississippi river is the longest river in the USA
the amazon river is the longest river in south America
The longest river is the Borsch River.
The spelling of America's longest river is America's longest river.
Oklahoma does share the longest state line with Texas. The length of this line is around 540 miles long, following the path of the Red River.
No it isn't the River Nile is the longest river!
the river amazon is the worlds longest river
The longest River in Africa is the River Nile. It is approximately 4160 miles, which is 6695 Km. The second longest River is the Congo River. The third longest River is the River Niger. The fourth longest is the Zambezi River
The Darling River has the longest river catchment, as it is fed by numerous large rivers in its headwaters. However, it is not the longest river. The longest actual river is the Murray River.