In all likelihood, the first thing folks are going to find out when they start digging into the history of Yellowstone's prized Dutton Ranch is that it doesn't really exist. That'll hardly come as a shock to many, because as authentic as the show might feel when it's not indulging in overtly melodramatic shenanigans, it is an entirely fictional tale. As such, there is not now, nor has there ever been, a functioning Yellowstone Dutton Ranch in Montana. Nor has there ever been a real, true-grit styled rancher by the name of John Dutton who could call that ranch his home.
That's not to say, however, that there isn't any sort of real-world basis for such a ranch, or even such a person. Though Yellowstone creator Taylor Sheridan has never confirmed as much, it's a safe bet that there's more than a little bit of historical basis for both the man and the land at the center of the Yellowstone fray.
In terms of the man in the middle of Yellowstone's narrative, John Dutton is most likely a composite character based on a couple of different North American ranching icons. Chief among them are current Montana kingpin Bill Galt, who (like John Dutton) has a penchant for flying around in a helicopter and taking meetings with high-powered politicians. The other is Texas ranching legend W.T. Waggoner, who was every bit as hell bent as John Dutton on keeping his 520,000 acre, North Texas Waggoner Ranch (itself the likely inspiration for Yellowstone's Dutton Ranch) in the family for as long as possible. While it remains to be seen how successful John Dutton will be in that endeavor, Waggoner managed the feat for nearly two centuries.