In 1973-74, the school board, faculty, and students in Buena Vista, Virginia, with the support of the Virginia State Board of Education, approved a single-track, four-quarter extended school schedule that provided year-round education at the high school level. This paper presents a review of the literature on year-round education and describes the Buena Vista planning process and outcomes after 20 years. Program results include increased utilization of school facilities; increased opportunities for students to complete programs for promotion, remediation, and acceleration; improved achievement scores; a reduction in the dropout rate; and overwhelming faculty and student support for institutionalization of the program, including the block schedule. Over 50 percent of the students consistently attend the fourth quarter. (LMI)