big snake identity

Question
We recently encountered a 6'long white and yellow snake hanging over the shoulder of a young man in Indianapolis.  Had never seen anything like it, real or in pix.  Quite beautiful.  Can you identify it to satisfy our curiosity?

Answer
Hi Ardyce
I would actually need to see a picture of the snake.  Was it a "thick-bodied" snake?  If so, it sounds like it was an Albino Boa constrictor.  If it's body was thin and narrow it could have been an albino cornsnake or kingsnake.  But 6ft leads me to believe it was a boa.