There are actually quite a few alpine lakes in the Holy Cross Wilderness, but the West Tennessee Lakes are some of the least visited. They are a beautiful collection of alpine lakes above treeline, but the primitive wilderness trail leading to the lakes can be overgrown and buggy in the warmer months when the trail is thawed out.
The West Tennessee Lakes are actually a collection of three lakes. The first lake is much smaller than the upper lakes. To get to the highest (and biggest) lake, you can follow a sometimes visible goat trail and gain elevation quickly at the end of the official trail. It can be a wet journey to get to the upper lakes, but it is absolutely worth the work.