A rating of moderate seems accurate after treking up this trail to Comanche Lake. Although it is a well-formed trail, it is quite rocky after the first 1/2 mile. Don't forget your insect repellent as the mosquitos are plentiful during the first 1/2 mile of the hike while it parallels a beautiful run off stream with many side springs. Fortunately for us, we had sprayed ourselves from head to toe with Sawyer's Composite and didn't have much of a problem during the ascent. The descent was a different matter altogether, we're guessing it was because of the late hour in the day or maybe after a day long hike, we smelled like filet mignon. LOL Our extremeties were well covered with the Sawyers, but constant attention of the mosquitos around our heads indicated we either weren't as thorough covering this area or the call of our blood was too strong. Don't let this detour you, just cover yourself well, very well, from head to toe and you'll be fine. Believe me, it is well worth the 4.5 mile trek up, up, up. The last mile, you hike straight back into the "bowl where the lake is, it is like watching fireworks on the 4th of July with plenty of "ooohs" and "aaahhs" as you look around at the surrounding valley, wildlife, wildflowers, and geology. When you finally reach the pristine lake, which apparently has some whopping sized trout, you know it was all worth it. The surrounding walls of the lake are moss covered with a variety of flowers growing in the rich soil. There are patches of past season's snow here and there. Columbines abound. Overall, it was a great hike. Our only regret, we didn't make the effort to climb from the lake up to the summit of Comanche Peak to check out the view on top.