Rico, It's been a few years, but we went around the west side of Lower Soldier Lake until you hit a steep, vegetated drainage that heads north into Miter Basin. The trail fades a bit as you hit the vegetation but there isn't really any other place to go. The drainage section shows up clearly on the google aerial map. It's moderately steep and wet but my memory might be slanted based on the weight of my pack. I think the east side gets you into bushwhacking.