Rio Grande Mud is the second studio album by the American rock band ZZ Top. It was released on 4 April 1972 by the London Records label. The album title was inspired by the Rio Grande, the river that forms the border between Mexico and Texas.
The band started writing songs for Rio Grande Mud while touring to support their first album. Guitarist Billy Gibbons said, "We started documenting events as they happened to us on the road; all of these elements went into the songwriting notebook. As we went along, we were keeping track of skeleton ideas as they popped up. The craft was certainly developing."
Billy Gibbons – guitar, slide guitar, harmonica, vocals Dusty Hill – bass, backing vocals Frank Beard – drums Pete Tickle – acoustic guitar on "Mushmouth Shoutin'" Bill Ham – production Robin Hood Brians – engineering
