Rancheria del Rio Estanislao was a Mexican land grant of 11 square leagues, or 48,887 acres, made to Francisco Rico and A. Castro on Dec. 29, 1843 by Gov. Micheltorena. The patent was signed by Pres. A. Lincoln on Jan. 21, 1863. Abraham Schell bought 3½ leagues in 1863 and, with George H. Krause, founded the famous Red Mountain Vineyard and Winery.