This trail begins just to the north of Spooner Lake. In the first three miles, the trail climbs approximately 1,500 feet to Marlette Saddle which is the high point of the trail at 8,200 ft. Although this part of the hike is challenging, be sure to take in the scenery as you'll pass through groves of aspens and conifers through which you may catch a glimpse of old logging cabins.

Once you crest Marlette Saddle, enjoy a half mile descent down to the beautiful blue Marlette Lake. The Marlette Lake Trail ends at the southern tip of the lake, but you can continue exploring the lake using the road that runs along the shore.