Unicorn - FS 3631

Total Miles
4.8

Technical Rating

2

Easy

Best Time

Spring, Summer, Fall

Trail Type

Full-Width Road

Accessible By

Trail Overview

Federal Forest Service Road 3631, also known as Unicorn, is a federally owned/ locally maintained, Level-2/ Level-3 forest road with a surface composition of dirt, sand, gravel, and native material. This route is currently open and in fair condition; it is not a DNR road (ORV use is subject to local government regulations) and connects West Tower Road/ Mission Hill Lookout (406) to FS 3021, FS 3058, FS 3677, FS S03E, Pendills Lake Road, FS 3682, FS 3580, and FS 3622. Description created on September 10, 2025.

Photos of Unicorn - FS 3631

Unicorn - FS 3631
Unicorn - FS 3631

Difficulty

Dirt, gravel, sandy road, typically unmaintained after rain or snow, that may give rise to shallow water crossings and obstacles under 12 inches on the trail, including small ledges. This road is typically one to two vehicles in width, with some portions narrowing down to a "Two Track" road.

History

Bay Mills, Michigan, has deep roots as a historic home to the Ojibwe (Chippewa) people, known traditionally as Gnoozhekaaning ("Place of the Pike"). Federally recognized in 1936, the Bay Mills Indian Community (BMIC) is a sovereign nation with a strong history of fishing, environmental stewardship, and economic development through gaming, including the Bay Mills Resort & Casino, founded in 1995. Raco, Michigan, originated as a 1887 sawmill settlement named after the Richardson and Avery Company. It is best known for hosting Camp Raco (1933), the U.P.'s first Civilian Conservation Corps (CCC) site, which later became a World War II German POW camp. Today, it is known for the decommissioned Raco Army Airfield, now a cold-weather testing site.

Technical Rating

2

Status Reports

There are no status reports yet for this trail.

Unicorn - FS 3631 can be accessed by the following ride types:

  • High-Clearance 4x4
  • SUV
  • SxS (60")
  • ATV (50")
  • Dirt Bike

Access Description

Access to the north entrance via West Tower Road/ Mission Hill Lookout (406) at: 46.456570, -84.636958. Access to the south entrance via FS 3622 "Avery South" at: 46.404569, -84.694845.

Unicorn - FS 3631 Map

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