Housed in a historic downtown building, the Farmington Downtown Development Authority is headquarters for all downtown activities. The DDA manages four large events during the years: Art on the Grand in June, Farmington Area Founders Festival in July, Harvest Moon in October and Holly Days in December. The DDA is responsible for the Farmington Farmers and Artisans Market, which is open in the Walter E. Sundquist Farmington Pavilion and Riley Park from May through November. In addition, the DDA administers the Main Street downtown revitalization program, which marshals an army of volunteers who assisted in development of the Streetscape project and continue to promote the central business district.