The Mexican-American border is constantly changing, not just by treaty, but by the persistent erosion of the Rio Grande. As a natural boundary, the river's channel determines the technical border between the two countries. Historically, the Rio…
River ramp leading to the Rio Grande near Brownsville. Vegetation lines both sides of the ramp, while trees are visible on the other side of the river.
Originally, treaties between Mexico and the United States provided for mutual navigation rights along the Rio Grande. Now, the river water is used primarily for domestic purposes and irrigation. As a result of the United States-Mexico water treaty of…
Three dead palm trees, at least two of which have cavity nests (probably those of the golden-fronted woodpecker), behind telephone lines off Texas State Highway 4.