When the King and Queen appeared there were big cheers from the crowds.
The royal couple watched a marching band and, for the first time on this trip, went on a walkabout to shake hands, which seemed to please the locals out enjoying the Appalachian sunshine.
It was full-on razzamatazz, with bunting and flags, young baseball players and elderly veterans. Cheerleaders were cheering and a parade of classic cars rolled through town.
There was also a demonstration of Appalachian clog dancing, watched keenly by the King and Queen, in a kind of impromptu royal variety show.
This was Front Royal’s “block party”, a neighbourhood celebration, marking the 250th anniversary of US independence.
It served as an example of small-town America, with a population of 15,000 and shops with names like Loose Cow Mercantile, Weasel Creek Outfitters and Proctor Biggs Feed Mill.
Bing Crosby sang here once for a fundraiser in 1948. But that landmark occasion could be eclipsed by the royal visitors.
It was a big day for the town, but it also looked like a big relief for the King and Queen.
It was a cheerful ending for what had proved an unexpectedly successful four days in the US, where the King’s speech to Congress had particularly drawn applause.