Also known simply as the Kelsey Trail, this takes you on a journey through the forest types characterizing all of the elevation zones in the Marble Mountains, starting with lowland interior mixed evergreen forest and ending in a subalpine conifer forest interspersed with broad, sloping meadows. The elevation gain is huge. About half the distance from the trailhead is scenic Maple Falls, which could be a good day hike destination in itself. The end of the trail furnishes access to Paradise Lake and Kings Castle. The trail is ordinarily well maintained, but expect some down timber early in the season. As of 2018, there is reportedly a landslide several miles from the trailhead that is a little sketchy for hikers, and that makes the trail not recommended for stock.