The University of Wyoming Extension office provides some good estate planning advice for farmers and ranchers in its online offering, Passing It On: An Estate Planning Resource Guide for Wyoming’s Farmers and Ranchers. Check it out.
By the way, my use of their logo doesn’t imply their endorsement, nor does it imply my endorsement of what they’ve written. What I’ve read of the guide, I like; however, estate planning is a complex area. It will come as no surprise that I recommend you consult with an attorney who practices in that area.