 The Seminary of Écône was founded in 1970 by Archbishop Marcel Lefebvre, and his tomb can be found there.In Riddes about 676 or (30.8%) of the population have completed non-mandatory upper secondary education, and 143 or (6.5%) have completed additional higher education (either university or a "Fachhochschule").Of the 143 who completed tertiary schooling, 60.1% were Swiss men, 21.0% were Swiss women, 15.4% were non-Swiss men and 3.5% were non-Swiss women.