i am hunting a fish and wildlife area with similer set up at first i found a couple of sorgum and clover fields figured that will be a good spot.
I have since found 5 more clover sorgum fields three bean fields and a corn field all on public land. I stopped looking i would do as chuck said go to google earth or even just google maps pull it up and check it out mark the field and look for creeks. I just set up my stand on a creek 50 yards in the wood off a field by a sorgum field right across the creek is a thick bedding area.

good luck find some water source.