The Rio Grande is 1,896-mile long, the fifth longest river in the United StatesThe Rio Grande's watershed encompasses 335,000 square miles. It drains more than 40,000 square miles in Texas alone.A 1,250 mile segment of the river forms the international boundary between Mexico and the United States.The Rio Grande begins in the Colorado mountains, courses through New Mexico, forms the border between Texas and Mexico, and flows into the Gulf of Mexico.Historically, the river flowed continuously from Colorado to the Gulf of Mexico until the early 1900s when construction of dams, channelization, human consumption, and landuse practices...
