The Ranch House Restaurant in Yarnell is closed on New Years Day. Jan 1 is a Wednesday and they are only open 4 days a week, Thurs - Sun. I called and confirmed. We could lunch in downtown Wickenburg at the Gold Nugget:
Historic Gold Nugget Restaurant - Wickenburg - Arizona or Anita's Cochina:
Anitas Cocina - Wickenburg, Az - 928-684-5777 Both have parking. I have eaten at both. And, we could call for reservations from McDonald's with a head count before we leave up the hill.
AZ Bob