Copper Peak is an 8,965-foot summit in Washington’s Entiat Mountains, within the North Cascades and Glacier Peak Wilderness. Managed as part of the Wenatchee National Forest, it is among the state’s highest mountains, ranking on both the top one hundred peaks and the Bulger List. Its name comes from an abandoned copper mine at its northeast base, tying the mountain to the region’s mining history. The first recorded ascent was made in August 1937 by Franklin Bennet, Edgar Courtwright, and Toivo Hagman. Shaped by uplift, faulting, and glaciation, the peak retains a glacier on its southeast slope and is known today for its remote, rugged character and mountaineering importance.