There's a rainbow on the Rio Colorado There's a haze around the western Texas moon Someone waits beside the Rio Colorado 'Cause I promised to come back to Texas soon When dawn comes breakin' through, this lonesome buckaroo Will be ridin' down the trail I used to roam There's a rainbow on the Rio Colorado And it calls me to my western Texas home There's a rainbow on the Rio Colorado There's a haze around the western Texas moon Someone waits beside the Rio Colorado For I promised I'd come back to Texas soon When dawn comes breakin' through, this lonesome buckaroo Will be ridin' down the trail I used to roam There's a rainbow on the Rio Colorado And it calls me to my western Texas home