Onion Creek Trail is a round-trip hike of 12.5 mi / 20.1 km near Prairie City, OR. Expect about 4,314 ft / 1,315 m of elevation gain, with a high point of 8,681 ft / 2,646 m. Difficulty: Hard. At an average pace, plan on about 7 hr 29 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 5,217 ft / 1,590 m · high 8,665 ft / 2,641 m