There didn't seem to be a lot of murals (easily found) along the Côte Nord (north side of the St Lawrence east of Quebec City).
The majority of the ones found were in Sept-Iles.
These were in Sept-Iles' Botanical Garden.
In a more central location is Sept-Iles was this one.
And this one was on the side of a First Nation museum in Sept-Iles
While not murals in the usual sense, these painted stones were in a park at Port-Cartier.
Forestville had two next to each other. The people in the second one are quite cartoonish.
Three murals at the Shrine in Sainte-Anne-de-Beaupre.