Grand Z Casino Hotel is in Central City, Colorado and is open daily 24 hours. Free WiFi is provided. The casino's 31, square foot gaming space features gaming machines and. One of the best details about Grand Z Casino sports betting venue is that it's open 24 hours a day, seven days a week. You can even book a room. The previous owners were more like a "Hard Rock Casino & Hotel". Now $92 (Was $̶1̶0̶4̶) on Tripadvisor: Grand Z Hotel Casino by Red Lion Hotels, Central City. Grand Z Casino Hotel in Central City features a casino, a bar and a restaurant. This relaxed, adult-only casino hotel is miles from Central City Opera House in the historic downtown area, and 12 miles from Argo Gold Mine and Mill. Since purchasing it. See traveler reviews, 91 candid photos, and great deals for. Grand Z Casino Hotel, Gregory St, Central City, CO See 40 customer reviews, rated stars. The slot and video poker machines range in price from pennies up to. Browse 52 photos and find hours, phone number and. Reviews ; / Cleanliness ; / Staff & service ; / Amenities ; / Property conditions & facilities ; / Eco-friendliness. review of The Grand Z Casino Hotel in historic Central City, Colorado. Grand Z features gaming machines and eight table games but does not have a poker room. .