Merrill MountainMerrill Mountain is a mountain on the border between the Canadian province of Quebec, in the region of Estrie, and the U.S. state of Maine, which is part of the Appalachian Mountains; its altitude is.GeographyThe mountain, located in the municipality of Frontenac, on the zec Louise-Gosford east of lac aux Araignées, is crossed by the Canada–United States border.ToponymyThe toponym "Montagne Merrill" was formalized on November 7, 1985, by the Commission de toponymie du Québec.