Black Mountain is a summit located in Hoonah-Angoon County, Alaska. It appears on the Skagway A-3 SW USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 5,832.51 feet (1,777.75 m) above sea level. The nearest populated place is Katkwaahltu (historical), approximately 19.6 miles to the NE.