Diamond Mountain Casino Hotel is governed by the federally recognized Susanville Indian Rancheria, located in Northern California.  The Diamond Mountain Casino was completed and open for business on February 17, 1996. By January 2002, the tribe was able to remodel the casino’s existing building to add a Sports Bar and Café as well as change its hours to be open around the clock. Along with these changes came new customers as well as employees. Additional expansion more than doubled the size of the existing casino. 

Along with growth came an abundance of tobacco smoke and odors.  In fact, this is by far the #1 complaint in the casino and adjoining hotel. Casino Air recently engineered a fix to the problem.  Clean Air is good business.