Located along Main Street in Mount Jackson, the Triplett High and Graded School is an important historic educational resource in this Shenandoah County town. The 1939 school building was constructed as an addition to a no-longer-extant 1925 building of similar design, and it retains character-defining features including a Doric-inspired portico, steel-framed windows, steel and soapstone stairs, archways, classroom cabinetry, and an auditorium/gymnasium with a stage and decorative proscenium frame. Built with New Deal funding in a Colonial Revival style, the building was used by White high school and grade school students until 1959 when the high school moved to another facility. In later years the building served as an elementary school and then middle school for both Black and White students, closing in 1993. The Triplett High and Graded School was built at the end of the period of classical/Colonial Revival dominance in Virginia public school design. After World War II Virginia school boards fully embraced Modernist design, a preference that has persisted to the present.