The Sullivan Ranch includes 2,160 acres, and is located in Rio Blanco, Routt and Moffat Counties. Patrick Sullivan came to Colorado from Ireland in the mid-1800's, one of 17 brothers who immigrated to America.Although he made application for homestead in 1884, the final patent wasn't issued until 1906. He raised cattle and forage crops, and acquired additional land in the adjacent counties. The use of the ranch hasn't really changed. The current owner, Eleven Bar Ranch LLC, includes partners and family members Milton C. Sullivan, Melton D. Sullivan, J. Elaine Sullivan, and Braeden A.