Cerro Ciento is an 11,154-foot mountain in central Idaho’s Boulder Mountains, within the Hemingway–Boulders Wilderness and Sawtooth National Recreation Area on the Blaine-Custer county line. Ranked the tenth highest summit in the Boulder Mountains and the 80th highest in Idaho, it rises about 0.8 miles north of Easley Peak. Its visibility from Idaho State Highway 75 and Galena Summit makes it a prominent landmark in this part of the range. The easiest route is an off-trail class 2 scramble from the end of Spring Creek Road. Its protected wilderness setting places it in one of Idaho’s best-known high mountain landscapes.