Trip Planner (0)
Michigan's Premier Trail Resource

Find A Trail


Trails Reviewed

Add to Trip Planner


  • Difficulty - Easy
  • Difficulty - Moderate
  • Multi-use Trail

Pointe Mouillee SGA: Perimeter Dikes

37205 Mouillee Rd
Rockwood, MI 48173
Phone: 734-379-9692

Get Driving Directions:

Wayne County
Lat: N 41° 59' 44.19"
Lon: W 083° 13' 13.00"
Distance: 9.8 miles
Trail Type: Multi-use trail
Terrain: Marshes and Lake Erie
Difficulty: Easy to moderate
Nearest City or Town: Rockwood

For the most part this 9.8-mile route follows the perimeter control dikes in the Pointe Mouillee State Game Area and for some makes too long of a day on foot. The distance is ideal for a mountain bike, however, the reason cycling is by far the most popular way to travel these dikes.

The loop begins at the end of Roberts Road near the South Causeway and is covered in a clockwise direction, saving the best for last. Roberts Road is picked up from Dixie Highway 1.5 miles south of the Huron River where it heads due south and in 2 miles ends at a parking area and boat launch.

Any outing in the state game area is better enjoyed if you pack along a pair of compact binoculars and if the day is sunny then you will also need sun screen, head protection and drinking water.

Trail Guide
Hours & fees

From the parking area and boat launch head north on Roberts Road for a hundred yards or so to pick up the start of a dike on the east (right) side of the dirt road. It’s begins as a loose gravel dike that heads north but quickly becomes a narrow, grassy two-track. The ride here, if you’re on a mountain bike, requires considerably more effort than anywhere else along this loop. Soon you’re paralleling a channel and will for almost the next two miles. Birdlife, muskrats, frogs and carp can be seen by those who slow down and study their surroundings.

At Mile 1.25 the dike swings sharply east and becomes more of a gravel surface for easier traveling. In another 0.3 mile it resumes its northerly direction to reach a pumping station at Mile 2.1. Around the station, used to control the water level in the marches, a handful of dikes head out in different directions. Two of them head due east, paralleling each other with a long narrow pond between them. Head east (right) on either and within a half mile you’ll reach another well-gravel dike. This heads north with Bloody Run Unit to the west and Long Pond Unit to the east. Both units are posted in places and contain marshes infused with bird life.

The dike begins as a wide, dry trail but can be wet and muddy at times in the spring. After a spell you have jog west (left) briefly in order to remain on the most distinguishable dike and at Mile 3.7 arrive at a second pumping station located near a junction with another dike. Head southeast (right) on the dike that skirts the open water of lower Huron River. A pull-over – a series of rollers that assists duck hunters with hauling their layout boats over the dikes – within a half mile and at Mile 4.7 is a junction with North Causeway. Head left to follow the causeway past the Vermet Unit, where the large patches of open water usually attract and hold large numbers of birds, particularly swans, herons and egrets.

At Mile 5.3 you arrive at junction on the edge of Wildlife Refuge section of the game area. This special area is the man-made barrier island that was the first step in restoring the wetlands. It is closed to hunters in the fall and is often referred to as the “banana” due to its elongated, curved shape. Head left again to hike along the outside of it and skirt Lake Erie. The view changes to a large expanse of a Great Lake to the east as you round the actual Pointe Mouillee while to the west are more cattail marshes humming with winged wildlife. At Mile 6.5 you head east (right) on the dike that heads inland for 0.3 mile before resuming a southerly direction (left) at the next junction.

Middle Causeway is reached at Mile 7.5 and is posted with signs for Vermet Unit and Lead Unit. It heads west (see Middle Cause Loop). On this outing you continue south to skirt the inside of the Banana for another 2 miles. To the west (right) is the open water and marshes of the Lead Unit. To the south you’ll see the twin stacks of the Fermi Nuclear Plant in Monroe. Wild birds to the right, nuclear power straight ahead; this is indeed an unusual sanctuary.

Soon you’ll also spot the large outlet tubes at South Causeway a mile or more before you reach them. The causeway is reached at Mile 9.5 and crosses a series of tubes. On the west side is a fishing pier and the entire area is popular with shore anglers who also fish from the rocky banks of the dikes. Some simply set up lawn chairs on the dikes and cast out, making you wonder if catching a fish is even part of their plans for the afternoon. Head north (right) on South Causeway and with 0.3 mile you’ll be back at the parking area and boat launch. where your vehicle is located.

At the state game area headquarters, reached from Campau Road, there is a boat launch, historical display and a long fishing pier along the breakwall where anglers gather to fish the mouth of the Huron River. Along a Jefferson Avenue on the north side of the Huron River is Brownstown Township's delightful Riverfront Park, featuring a boardwalk and benches overlooking the river. There is also a boat launch and a fishing pier along the South Causeway, reached at the end of Roberts Road.

Pointe Mouillee is open to non-hunters year round except during hunting seasons for snipe, rails, ducks, mergansers, coots, and moorhens. The seasons, often referred to as the "no birders allowed" period is September 15 through the end of November plus the first weekend in January. The rest of the time the area is open to non-hunters and hunters. The last legal day for small game hunting is March 31 and after that you will not see to much, if any, blaze orange.

The state game area headquarters is open only on Monday and Wednesday from 8 a.m. to 4:30 p.m. There are no vehicle or entry fees to visit the state game area.

From I-75, depart at exit 27 and east on North Huron River Road for two miles. Turn south on Jefferson Road and in 1.5 miles turn east on Campau Road and follow the signs to reach the headquarters.

There are three main trailheads or access points into the state game area. The middle Causeway Loop is reached from the Sigler Road entrance. Continue south from Campau Road and Jefferson turns into Dixie Highway and crosses the Huron River. Just beyond it is Sigler Road where you turn east (left) and follow it to the end to the parking area.

The Mouillee Creek trailhead and parking area is another 1.2 miles south of the Huron River on Dixie Highway. Perhaps the most popular access point into the state game area is the end of Roberts Road. The dirt road is 1.5 miles south of the Huron River where it heads due south from Dixie Highway and ends at a parking area in 2 miles.

Call or stop at the Point Mouillee State Game Area Headquarters (734-379-9692; 37205 Mouillee Rd, Rockwood) reached from Campau Road off of Jefferson Avenue.

Shop Our Trail Maps & Guidebooks

Need a good trail map or a guidebook to what lies beyond the pavement? Check out the Trail Shop stocked with our latest backpacking maps and books personally autographed by the authors who wrote them! It's the best and most affordable way to purchase maps and trail books to Michigan.

Heading up north and need a map right away? Stop at one of our growing network of outdoor shops, visitor centers and stores that sell books and maps.
Click here for a complete list.


Trail Talk Blog