A Mountain Day is a day in the Grayson family's summer trip to Colorado. In the winter months, the wealthy Grayson family stays in New York. Camilla Grayson, the eldest child, has become engaged to a Yale man. This summer, Judy, the Grayson's middle child, becomes engaged to Rod Stephansson on the latest summer trip to visit her grandmother in the mountains of Colorado. Rod attends Harvard. The two young Grayson daughters viewed these trips to Colorado more as duty than pleasure. Many of the family's situations are contrived through habit and have become boring.
Judy, Camilla, and their beaux will take a day trip onto the mountain. It is Sunday, and they will travel on horseback. There will be lunch at the summit. Before the trip, Judy travels across the lake.....
