This was a fantastic trail! The only tricky part is that the trail is not well marked when you hit the first of the two Chicago Lakes. The trail goes to the right of the lake and there is a fork in the trail that is pretty easy to miss. The portion of the trail that looks more travelled goes to the right and ends up in a huge boulder/scree field with tons of brambles. (I unfortunately took this route and ended up searching for the trail for quite some time while having to carry my dog through the tricky sections). The correct trail goes to the LEFT at the fork and goes below the boulder field. It is a bit overgrown and muddy, but definitely beats the first route. It is a long trail, so be sure to ration your water. I unfortunately only make it to the upper Chicago Lake because of weather coming in, but I am going to attempt it again to get to the summit lake.