Green Mtn Trailhead to Onahu Trailhead Trail

Green Mtn Trailhead to Onahu Trailhead Trail is a 1.36-mile out-and-back foot trail in Rocky Mountain National Park, Colorado. It climbs 23 ft to a high point of 8,831 ft. Difficulty: easy, from the NPS hiking-rating formula.

Green Mtn Trailhead to Onahu Trailhead Trail, Rocky Mountain National Park
Photo: KimonBerlin · CC BY-SA 2.0 · Wikimedia Commons

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Open Green Mtn Trailhead to Onahu Trailhead Trail on Trailbound's interactive map to see the full route, the elevation profile, today's forecast and any park alerts for Rocky Mountain. Rocky Mountain has permits or reservations for some areas: see the Rocky Mountain page for what's needed.

More trails in Rocky Mountain

All 233 trails in Rocky Mountain National Park