Located at 10 Princes Point Road, it was in business, albeit not continuously, for 83 years.

Former First Lady Eleanor Roosevelt and her entourage once stayed at the Royal River Cabins, further north along Route 88, because the Eastland Park Hotel in Portland banished her dog, Fala.

[5] She chose to dine at the Westcustogo,[5][2] while the owner's daughter entertained Fala on the porch.

[6] Other notable guests at the inn include Fred Allen, Portland Hoffa, Joe Louis, Gene Tunney, Clark Gable, Charlie Chaplin, Greta Garbo, Margaret Chase Smith (on November 4, 1965), Jean Harlow, Mary Pickford, Myrna Loy, Douglas Fairbanks, Bette Davis and Gary Merrill.

[5][7] However, the authenticity of the signatures in Ernest Johnson's 1923–1941 guestbook have been found difficult to verify.