Bears Breast Mountain is a mountain summit located in Kittitas County of Washington state. It is entirely within the Alpine Lakes Wilderness, on land managed by Wenatchee National Forest. Bears Breast Mountain is situated slightly east of the crest of the Cascade Range, ten miles northeast of Snoqualmie Pass. Not visible from a road, the mountain can be seen from a trail which passes to the southwest of the peak near Dutch Miller Gap. Precipitation runoff from the mountain drains into tributaries of the Waptus River. The nearest higher peak is Little Big Chief Mountain, to the southwest.