 In 1983, the hotel was given a Western theme and re-branded High Sierra Hotel and in 1985 hosted the companies who defined the High Sierra Format, the basis for how computers access CD-ROMs today.In 1990, it was sold to Columbia Sussex, which re-branded the hotel again as Horizon.Columbia Sussex (leaseholder) was in a contract dispute with Park Cattle Company (now Edgewood Companies), the landowners of Horizon and MontBleu (formerly known as Caesars Tahoe), which Columbia Sussex acquired from Harrah's Entertainment (now Caesars Entertainment Corporation) in 2005.