Length: 4.2 miles (total loop is 7.6 miles)
Elevation Gain: 1646 feet (full loop: 1781 feet)
Highest Elevation: 6600 feet (full loop: 5906 feet)
I got an early morning start from Hood River and made it to the trailhead parking lot in about 90 mins. There were only two other vehicles there.
I only went as far as the Eden Park/Cairn Basin/Timberline turnoff to the upper loop. I've been dealing with a foot issue. I cut my losses and started back to the trailhead, vowing to return to complete the loop.