Mount Larrabee is a 7,865-foot (2,397-metre) Skagit Range mountain summit situated 1.4 mile south of the Canada–United States border, in the North Cascades of Washington state. It is located immediately southeast of American Border Peak within the Mount Baker Wilderness, which is part of the Mount Baker-Snoqualmie National Forest, and near North Cascades National Park. It is notable for its reddish coloring caused by oxidation of Iron in the rock. The rock consists of reddish interbedded and interfolded phyllites and greenstone. Originally known as Red Mountain, the name was changed in 1951 to honor Charles F. Larrabee (1895–1950), of the prominent Larrabee family of Bellingham, Washington. The name was officially adopted in 1951 by the U.S. Board on Geographic Names.