The end of our third year of grazing approaches, the exact date will probably be determined by the weather, i.e. too much snow will fall for the cows to dig through for a fresh bite. It is possible we'll run out of grass before the snows get too deep as our pasture's fertility is far from optimized and the volume of grass available to our herd diminishes by the day. Our goal is to make it to the New Year on stockpiled pasture, thereby avoiding many days of (expensive) hay feeding. Last year we grazed until just after Thanksgiving, but this year our management was tighter and the weather has been cooperative, so things look good for meeting our goal.
And here is a picture of my favorite cow in our herd, Sable. She's docile, maintains her condition well, and raises a big calf every year. I love cows.