Riviera Holdings Corporation owned a casino In Nevada which operated until what year?
Riviera Holdings: Riviera Holdings Corporation is a defunct casino operator that was based in Winchester, Nevada. Riviera Holdings:  It owned two casinos: the Riviera on the Las Vegas Strip, closed in 2015; and the Riviera Black Hawk in Black Hawk, Colorado, sold in 2011. Riviera (hotel and casino): Riviera (colloquially, "the Riv") was a hotel and casino on the Las Vegas Strip in Winchester, Nevada, which operated from April 1955 to May 2015.
2015