Old Glory Mountain is a 2,376-metre summit in British Columbia, the highest peak in the Rossland Range of the Monashee Mountains. Near Rossland and Red Mountain Ski Resort, it rises dramatically above Big Sheep Creek, with more than 1,600 metres of relief over five kilometres. Its subarctic climate brings cold, snowy winters, possible summer thunderstorms, and a usual visiting season from July through October. A popular 9.4-kilometre route gains 974 metres to a summit topped by an old fire lookout. The name, likely referring to the United States flag, was officially adopted in 1950 after appearing in published use by 1901.