Lake Haiyaha To Mills/Loch Junction Trail is a roughly 5-mile out-and-back foot trail in Rocky Mountain National Park, Colorado. Difficulty: moderate, from Trailbound's popular-hike list. That is the full hike: the mapped trail line covers only 2.16 mi of it, so don't plan from the map line alone.
Open Lake Haiyaha To Mills/Loch Junction 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.