Copper Peak is an mountain summit located in the Entiat Mountains, a sub-range of the North Cascades, in Chelan County of Washington state. Copper Peak is situated 80 miles northeast of Seattle in the Glacier Peak Wilderness, on land managed by the Wenatchee National Forest. Copper Peak ranks 22nd on Washington's highest 100 peaks, and 19th on the Bulger List. The nearest higher peak is Mount Fernow, to the south. Precipitation runoff from the mountain and meltwater from the glacier on the southeast slope drains into nearby Lake Chelan via Railroad Creek. The first ascent of the peak was made in August 1937 by Franklin Bennet, Edgar Courtwright, and Toivo Hagman. The peak's name refers to an abandoned copper mine that once operated at the northeast base of the peak.