École secondaire Grande-Rivière, commonly abbreviated as ESGR or E.S.G.R. (both officially and non-officially), is the only francophone secondary school in Aylmer, Quebec. Its total population is over 2000, including just over 1900 students and more than 100 faculty members. Because it is the only public school central in Aylmer, students from all social classes attend it, from the poorer suburbs to the richer neighbourhoods. It is therefore the seat of many different organizations and events, from science fairs to sports teams, and a myriad of things in between.