Remembering History: Since Texas became a state, the Rio Grande has marked the border between the U.S. and Mexico. But, like rivers do, it moved. In 1964, the U.S. finally gave back 437 acres of land.

Since Texas became a state, the Rio Grande has marked the border between the U.S. and Mexico. But, like rivers do, it moved. In 1964, the U.S. finally gave back 437 acres of land.

Since Texas became a state, the Rio Grande has marked the border between the U.S. and Mexico. But, like rivers do, it moved. In 1964, the U.S. finally gave back 437 acres of land.