Boundary Peak 75 is a summit located in Hoonah-Angoon County, Alaska. It appears on the Sumdum C-2 SW USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 7,844.03 feet (2,390.86 m) above sea level. The nearest populated place is Sumdum (historical), approximately 30.6 miles to the W.