Ghost riders

A racing horse and rider, alongside a steam engine on rails over vast plains
Wind blowing free over prairie, a dream in memory indelible blurred stains
For memories fade with time, black and white to gray
The gun he wore at his side today has evaporated away
Car keys take the place of reigns on asphalt rails  
Eighteen wheelers instead of trains, dead their tales
Where cattle once grazed a young couple waters their lawn
With a raising sun, ghosts of the past are now gone