Originally from Caraquet in northeastern New Brunswick, D’Amour‑Léger discovered photography at the age of twelve and learned the fundamentals of darkroom work. She continued her studies at the Université de Moncton and Concordia University in Montréal, earning a Bachelor of Fine Arts in 1986.  

She returned to her hometown in 2007, drawing inspiration from the maritime landscape and local birdlife for her exhibitions De ma fenêtre (2015) and Corneilles: Noir sur blanc (2017), presented in several galleries across New Brunswick. From 2020 to 2022, she carried out a project focused on the world of fisheries, culminating in the exhibition and book Cap sur les pêches (2023), which document her discoveries over three years of field expeditions.