Obsidian Trail is a round-trip hike of 10.6 mi / 17 km near Sisters, OR. Expect about 1,808 ft / 551 m of elevation gain, with a high point of 6,457 ft / 1,968 m. Difficulty: Hard. At an average pace, plan on about 5 hr 21 min. 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 4,793 ft / 1,461 m · high 6,450 ft / 1,966 m