 Nault was also choreographer and ballet master for the École Supérieure de Danse du Québec, the school established by Madame Chiriaeff in 1966.He remained active with Les Grands Ballets Canadiens for many years and in 1990 was named choreographer emeritus, a title he held until his death.Besides his work for Canadian companies, he was also guest choreographer for several troupes in the United States, including the Denver Civic Ballet, the Atlanta Ballet, and the Colorado Ballet, for which he also served for a time as artistic director.