Williams Williams, Arizona, is the gateway to the South Rim of Grand Canyon National Park. It also lies on historic Route 66. General Info: Williams Basics Areas: Downtown Williams Day Trips: Grand Canyon National Park (South Rim) Hackberry Kingman Seligman Truxton Share this:TwitterFacebookEmailWhatsAppMoreTumblrPinterestPrintPocketRedditTelegramLinkedInLike this:Like Loading...