The festival that celebrates the harvest season and features a big parade in Vermont, USA is the Stowe Foliage Arts Festival. This event celebrates the beautiful fall foliage with arts and crafts, local food vendors, and lively music. It typically includes a grand parade showcasing local traditions and is an opportunity for artisans to display and sell their work. The festival emphasizes community spirit and appreciation for the bountiful harvest, making it a beloved event for locals and visitors alike during the autumn season.