Hidden Lake Trail is a round-trip hike of 8.4 mi / 13.5 km near Rhododendron, OR. Expect about 2,677 ft / 816 m of elevation gain, with a high point of 5,728 ft / 1,746 m. Difficulty: Hard. At an average pace, plan on about 5 hr. High-elevation trail, usually snow-free from mid-July into October. Before then, expect snow and possible avalanche danger.
Elevation profile
Along the route: low 3,064 ft / 934 m · high 5,722 ft / 1,744 m