The Rio Grande Valley is an area located in the southernmost tip of Texas. It lies along the northern bank of the Rio Grande, which separates Mexico from the United States.

In reality, the Rio Grande Valley is not a valley, but a delta or floodplain. However, early settlers from Mexico felt that the term "Valley" sounded more inviting to tourists and northern investors than did "Delta." The Rio Grande Valley is also called "El valle", the Spanish translation of "the valley", by those who live there.
Its largest city is Brownsville, Texas. Other major cities include McAllen, and Harlingen
Discover The Island
Along the eastern boundary of what is known as the Lower Rio Grande Valley is South Padre Island, a resort community located on the tip of Texas' great barrier islands - South Padre, the southernmost tip of the United States. Five miles long on a 35-mile long stretch of sand dunes and palm trees, the island is situated about two miles offshore, separated from the mainline by the great Laguna Madre - a natural bay formed by the far-reaching island that skirts up the coast to Port Mansfield.