After he finished his studies in photography in 1954, Gravel worked for the Studio David Bier from 1956 to 1957. After that, he worked for newspapers such as Le Devoir, the Montreal Gazette, and La Presse. During his tenure, he covered major events such as the Vietnam War and the 1976 Summer Olympics. He officially retired in 2005. That year, several of his photographs were exhibited in a retrospective at the in Montreal.
