Sugarloaf Mountain is a large prominent peak in the San Bernardino Mountains in Southern California. With a peak elevation of 9,952 feet, it is the highest peak in the San Bernardino Mountains outside the San Gorgonio Wilderness. Wilderness permits are not required to hike the peak, but a Forest Service pass is required to park on any fire road. Sugarloaf Mountain is clearly visible in most parts of Big Bear Valley.