Mirror Lake is a mountain lake in Clackamas County of the U.S. state of Oregon. It is located at the foot of Tom Dick and Harry Mountain in a natural catchment formed by a toe of the mountain, 11.4 kilometres (7.1 mi) southwest of Mount Hood, and 3.1 kilometres (1.9 mi) WSW of Government Camp within Mount Hood National Forest. It is among the most popular day hikes in the Mount Hood area, and a popular Nordic skiing destination. Its 800-foot (240 m) elevation gain in 1.4 miles (2.3 km) is considered an easy hike.