 By the 1880s the valley supported a thriving mining commerce; in 1882 the county seat of Alturas County was moved from Rocky Bar in present-day Elmore County to Hailey, in response to a population shift from Rocky Bar – which would eventually become a ghost town – to the Wood River Valley.The Blaine County boundaries described in its 1895 creation ordinance contained lands that soon were partitioned off to form other counties.Only thirteen days after the official formation date of Blaine, Lincoln County was formed from the county.