H.G. Leach Trail is a hiking trail in Essex County, New York. It is within Dix Mountain Wilderness and Adirondack Park. It is 4.9 miles long and begins at 1,432 feet altitude. Traveling the entire trail is 10.1 miles with a total elevation gain of 4,866 feet. Dial Mountain (elevation 3,986 feet) and Bear Den Mountain (elevation 3,379 feet) can be seen along the trail. There is also a viewpoint along the trail.