Mammoth Canyon is a valley located in Custer County, Idaho. It appears on the Shelly Mountain USGS 7.5-minute topographic quadrangle. The nearest populated place is Cliff (historical), approximately 2.0 miles to the NNE.
Custer County · Idaho
Mammoth Canyon is a valley located in Custer County, Idaho. It appears on the Shelly Mountain USGS 7.5-minute topographic quadrangle. The nearest populated place is Cliff (historical), approximately 2.0 miles to the NNE.