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