Sheep Mountain Wilderness

Sheep Mountain Wilderness is a 42,160-acre property straddling the line between Angeles National Forest and San Bernardino National Forest. The wilderness area is also contained within the bounds of the San Gabriel Mountains National Monument. San Gabriel Wilderness is to the west, Pleasant View Ridge Wilderness is to the northwest, Cucamonga Wilderness is to the southwest.

The old Big Horn Mine on Iron Mountain
Big Horn Mine, a popular destination in Sheep Mountain Wilderness