Thanks for the suggestions... I'm using the Marias Pass Hay Bails and I found a corn field in the Penn Coal route. So I'll be using them when I get to the fields in my route. I'll be posting some new pics in the main thread once I get some more stuff done this week.
It's in the miscellaneous scenery paint section. I forget under what but it says "corn field" and I think there's 2 types. I'll get more details later.