Kathy, they're just off the trail to the left (south), overlooking CL. You can't see them due to a slight rise of maybe 5 feet that blocks your view of the lake when you're alongside it. You may notice a few cairns to the side of the trail where a well-formed staircase is cut into the rock. These ducks generally indicate camping ledges on the other side of the rise. You have to walk up the rise to peek a time or two, but they're pretty easy to find.
These sites are 10-15 minutes below Trail Camp, but it's a completely different world. Peaceful, serene, beautiful.
These ledges have maybe a dozen semi-groomed, flat campsites interspersed over a stretch of a couple hundred yards. If you have neighbors, you won't see them. I've even been able to use tent stakes in some instead of tying guy-lines to rocks. If you do camp here, I strongly recommend you build a distinct cairn along the trail to let you know the location of your site. Since you can't see it from the trail, it can be easy to lose.
The downside is water availability. Early- to mid-summer season there's always a meltwater stream running along the trail on the right as you're ascending (another landmark that tells you the ledges are near, since you have to cross it) but later in the summer it may not flow dependably. The next option is getting water from CL itself, which would require some backtracking to the lower (eastern) end of the lake. You can also access the lake in a short, straight line downward from the ledges, but it's a class 3 scramble. The third option is the pond at Trail Camp.
Photos from a couple of different trips below:
Gary