Marshall Trail (unmarked) is a hiking trail in Essex County, New York. It is within High Peaks Wilderness and Adirondack Park. It is 0.6 miles long and begins at 3,806 feet altitude. Traveling the entire trail is 1.2 miles with a total elevation gain of 832 feet. The MacIntyre Mountains ridge can be seen along the trail. The trail ends near Mount Marshall (elevation 4,373 feet). There are also viewpoints near the end of the trail.