Capitol Peak is a 2658 ft peak in the Black Hills in the U.S. state of Washington. It is one of the two highest peaks in the Black Hills, along with Larch Mountain. Capitol Peak is located in the Capitol State Forest. There is a partially paved road to the summit called the Sherman Valley Road. The summit hosts a communications facility that includes an array of cell phone and radio towers. On a clear day, looking to the west is a view of Elma and the Satsop Nuclear Power Plant. Looking to the east is a view of Mount Rainier, Mount St. Helens, and Mount Adams; more to the north are the Puget Sound, and the Olympia area.