One of the earliest cattle empires in the Okanagan began in 1867 when Cornelius O'Keefe and Thomas Greenhow drove cattle from Oregon to the north end of Okanagan Lake. In 1868 O'Keefe homesteaded 162 acres nearby, and within 40 years his cattle were grazing over 15,000 acres. The ranch became the site of Okanagan Post Office in 1872.
From BC's Stops of Interest