The 4091 foot Seymour Mountain is located in the Seward Mountain Range in the High Peaks Wilderness and is part of the 46 Adirondack High Peaks.  There is no maintained trail to the summit, which has some views.  Most who hike to the summit of Seymour Mountain are those looking to join the ADK 46er club. There are four of the 46 Adirondack High Peaks in the Seward Mountain Range, Seward Mountain, Mount Donaldson, Mount Emmons and Seymour Mountain.  These are probably four of the toughest peaks to summit of the 46 Adirondack High Peaks. Seymour Mountain is usually done separately, while Seward/Donaldson/Emmons are done in one combined trip.

The Seward Mountain Range is located in a very remote area within the High Peaks Wilderness.  Be sure to be fully prepared before hiking in this rugged area.  It is a long 5+ mile hike just to get to the herd path from the Corey's Road trailhead. Many use the Ward Brook Lean To or Blueberry Lean To as a base camp to conquer the four ADK 46ers in this area. 

From the Ward Brook Lean To, it's about 500 feet to a brook and the well defined herd path, marked with a rock cairn on your right. You will use this brook to follow as it leads you southwesterly to an old slide track about 0.5 miles from Ward Brook Lean To.  This is a very difficult section of the hike to the summit as it is very eroded.  As you climb the slide there are views north.  Eventually the slide gets too steep and you'll find paths entering the woods on the right.  The path gets steeper and muddier with new trails opening up from hikers trying to avoid the mud.

Soon you'll find a lookout on your right that features a view of Upper Saranac Lake, Azure Mountain and Debar Mountain as well as the Sawtooth Range in the east.  Follow the ridge southwest to the summit.  The path splits once again near the summit as the trail on your right leads 50 feet to a rock ledge with a spectacular view of the Seward Range.  The trail that goes left leads 100 feet to the wooded 4091 foot summit of Seymour Mountain.