122 W. historic Route 66 Williams, Arizona 86046 928-635-1134 The Fiesta Mexican Grill started on Route 66 in downtown Williams in June of 2015. The City of Williams is nestled in the tall pines of the Kaibab National Forest about two hours drive to the Grand Canyon. We were proud to become a member of the community and pleased that the community welcomed us so graciously. We are happy to welcome visitors from our fair City and from around the world.