Early settlers in Whitmore Canyon, later called Sunnyside, included Jefferson Tidwell, his family, and his brother John, who grazed cattle in the area before building their home in 1897. They located a vein of coal and sold it to the Utah Fuel Company for $250, paid in ten- and twenty-dollar gold pieces. The first shipment of coke was in 1899. Columbia was settled in 1922. The Whitmore ranch area is now called Dragerton, making East Carbon the home of the largest coking coal deposits in the West.