Eightmile Mountain is a mountain summit located in Chelan County of Washington state. Eightmile Mountain is situated within the Alpine Lakes Wilderness, on land managed by Okanogan-Wenatchee National Forest. It is part of the Wenatchee Mountains which are a subset of the Cascade Range. Its nearest higher neighbor is Cashmere Mountain, to the northeast, and Mount Stuart rises to the south. Precipitation runoff from the mountain drains into Trout Creek and Eightmile Creek, both tributaries of Icicle Creek, which in turn is a tributary of the Wenatchee River. This mountain is known for its spring skiing and excellent view of the Stuart Range.