He maybe going near Dawson City in the Yukon Territory. If that's the case then:

Diamond Tooth Gertie's Gambling Casino

Diamond Tooth Gertie's, named for the dance-hall queen Gertie Lovejoy and her signature diamond-studded smile. Games include blackjack, roulette, poker, slot machines and more. For some fun, catch a live can-can girls performance, with three nightly shows. Food and beverage services are also offered. Open from May to September.
Address: 4th Avenue and Queen Street | Dawson City, YT | Y0B 1G0
Tel: 1 867 993-5575

Have him bring you home some chips. My buddy went up there a few years back and I wasn't collecting chips at the time. He did an Alaska trip and this was close to where he was touring. He took some pictures, the place looks like a lot of fun.