I've hunted the East. The main gate is off 281. I think I remember that it's 70,000 acres.
That's right--there is more than one East ranch. There is also a East ranch northwest of Port Mansfield. Two East brothers married Kleberg girls. The Klebergs were a hard drinking bunch of rounders, the Easts were conservative and religious. The girls split off their portions of the King ranch a merged them with their husbands' land. El Sauz which is over 50,000 acres was the attorney fee for the partition. So, the East ranches must be bigger than 70,000 acres. The ranch you are talking about runs along the playa country from 281 to Sarita.
The Easts allow no big game hunting on their ranch. Never seen so many tame deer.