She was trained in drawing, workshop and motif, by her cousin Georges Delfosse [fr] who had studied at the National Institute of Fine Arts with Joseph Chabert [fr] and then at the Art Association of Montreal with William Brymner and Edmond Dyonnet.

[3] In 1910, at the age 25, Rita Mount studied at the Atelier Delécluze and at the Cercle Internationale des Beaux-Arts in Paris and at the Art Students League in New York with Frank DuMond.

[3] In search of landscape, she travelled, exploring towards the Pacific Coast (Banff in 1934, Victoria, Yellowstone Park and Wyoming in 1937) and then the Atlantic side (Cape Breton, Nova Scotia and Gaspé).

She gained her reputation for her marine paintings which were the subject of a solo exhibition at the Art Association of Montreal in 1934.

In 1958, her works were shown in a three-woman exhibition alongside Irene Shaver and Vivian Walker.