The Blue Diamond Mine has operated on the land since the 1920s. Gypsum has been mined at the site, which is known as Blue Diamond Hill and is located west of Las Vegas. Blue Diamond Hill is located at the eastern edge of the Red Rock Canyon National Conservation Area, near the small community of Blue Diamond, Nevada. In 1999, mine owner James Hardie Gypsum put 2,700 acres of mine land up for sale, at a price of $45 million.