Okay, someone pointed out that I was incorrect. I know at one point I had read that Indiana did not distinguish a difference but can not find where I read it. So as it stands I was incorrect and will acknowledge the fact I was wrong. But it seems when you google the difference between the 2 there are people that believe they are the same and some that they are different. The consensus is they only difference is the habitat in that steelhead are sea run or great lake run fish.

Mike P.