What part of Wyoming are you in? It does seem to require more acres of grazing land per head up there. The sheep seem to be very profitable. I helped my friends when I lived in Wyoming occasionally. They ran a Rambouillet x Hamp/Suffolk cross variety and seemed to do very well. They also had a few head of cattle, but you need more specialized and heavier equipment or knowledgeable manpower to handle many cattle. Cattle give you less cause to worry than sheep, but sheep have a quicker financial return than cattle. A good Great Pyrenees dog is worth it's weight in gold. What they had was successful. So I would say run both species of cattle and sheep. I would start with maybe two or three head of bred cows and five head of sheep ( a ram and four ewes) and see how you make it through the first year (the real test up there is making it through two winters). Knowing the volatility of the hog market and the cost of feed and feed conversion factors, I wouldn't recommend raising hogs up there except for your personal consumption. And the only reason I would do that is so I would know what that hog had been fed. If you can find a good source of butcher hogs I wouldn't raise a hog. I am assuming you will confine your animal husbandry efforts to the 60 acres not committed to irrigated hay. Irrigation is a big deal in Wyoming. Water rights conflicts are serious business so maximize your irrigation production. Wait till you produce some calves and see how your grazing is supporting your cattle before you buy a bull. You can ask someone for help with artificial insemination or possibly find a nice neighbor that will let you use their bull. You will need to have good quality cows though.