A friend of mine runs a 6,000 acre ranch. There's him, 1 full time hand, and one full/part time hand. They run about 1,200 mother cows and I'm not sure how many yearlings but I'd guess a couple thousand if you added the calves born on the ranch with the ones they buy. The ranch is in three different 2,000 acre sections so each of them is responsible for about 2,000 acres, 400 cows, and however many yearlings. They handle it easy enough and still go on trips and rope on the weekends. They also raise Angus bulls and raise all their own replacements. This is the reason I don't understand why people think they should be a full-time rancher with 80 cows. 80 cows isn't even a part time job around here. These guys do hire school kids to help with hay in the summer but have been getting away from feeding any hay over the last few years.