Think of this trail as a trail with multiple options. The first part, up to Frozen Lake, was an easy hike, as long as you don't fear heights. From there, there are multiple options including Burroughs Mt. and a return loop to Sunrise. Then there are 3 peaks to Burroughs Mt. At the first peak you have an option to take another loop back to Sunrise, continue to peak 2 or turn around and return to Sunrise. The hike from Frozen Lake to Peak 1 is fairly steep and had some snow but nothing to worry about. Then you go down hill and back up to peak 2. The most difficult part of the hike was between peak 2 and 3. It was fairly steep and a couple of large snow fields. But the view at the top was worth the hike. Overall, I'm glad I did this hike and recommend it. But you should be in good shape. Some of the inclines are steep and challenging.