The newly repaved Watkins Glen circuit would be a "wonderful" venue for Formula One, according to race director Charlie Whiting.
Watkins Glen hosted the United States Grand Prix on the F1 calendar between 1961 and 1980, with Phoenix, Indianapolis and now Austin hosting future races.
Whiting was in the US to inspect the New York located track which had just been resurfaced, and spoke of his appreciation of the famous circuit.
"I think the track looks marvellous," he told local reporters. "I am really, really impressed with the work that has been done. It has been done to a very, very high standard.
"I think it is one of the most charismatic circuits in the US. There are newer ones like the Circuit of the Americas but it hasn't got the character that this has got.
"I think it would be an absolutely wonderful circuit for F1 cars to race on - but we all know it is not quite as simple as that. As far as circuits in the US go, this is right up there."
He added: "It is always a pleasure to come over and see how things are done over here, to see how well things can be done without going to the silly levels of some of the modern tracks that get built by very wealthy governments - what we see here is an absolute gem of a track. It has got heritage and that is what I like."