Au Sable State Forest - Gladwin Unit
Managed by Michigan Department of Natural Resources
5,366 acres19.2 mi of trail
Thornapple Trail
🐕 Dog rules not recorded
No trailhead mapped yet
Outdoors in Winterfield
Parks, trails & the outdoors in Winterfield
About 10% of Winterfield is conserved land, roughly 2,349 acres. There are about 39 miles of mapped trails, and the biggest networks are in Au Sable State Forest - Gladwin Unit (19.2 mi), Winterfield Conservation Club (5.1 mi), and Kirtlands Warbler WMA (1.2 mi).
Conserved land
10%
2,349 of 23,308 acres
Trails
39 mi
1.1 mi per sq mi · 8 on conserved land
Parks & preserves
4
named on the map
Bike routes
0.0 mi
Lakes & rivers
3
This week on the trails
Best day for a walk: Tuesday
63°, widespread frost then sunny, 0% chance of rain.
Today62° 28°0% rain
Sat63° 38°2% rain
Sun66° 31°15% rain
Mon59° 28°1% rain
Tue63° 38°0% rain
Wed68° 38°5% rain
The map
Conserved land, trails & bike routes
Tap a number to zoom to a park. Tap a layer to hide it.
Easements protect land from building but are usually private.© OpenStreetMap contributors · USGS PAD-US
Places to walk
Pick a walk
The longest trail network is Au Sable State Forest - Gladwin Unit, with 19.2 miles. Directions go to the nearest trailhead or public parking.
Winterfield Conservation Club
Managed by Winterfield Conservation Club, Inc.
1,355 acres5.1 mi of trail
🐕 Dog rules not recorded
No trailhead mapped yet
Kirtlands Warbler Wildlife Management Area
Managed by United States Fish and Wildlife Service
610 acres1.2 mi of trail
Van TrailThornapple Trail
🐕 Dog rules not recorded
No trailhead mapped yet
Clam River Boating Access Site
Park
1 acres
🐕 Dog rules not recorded
No trailhead mapped yet
Trails & water
3 named trails and 3 lakes & rivers
Named trails
Unpaved · 7.0 mi
Thornapple Trail2.3 mi
Van Trail0.5 mi
Berry Trail0.5 mi
Lakes & rivers tap for directions
Who protects it
2,349 conserved acres
Who manages Winterfield’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Private owners1,669 ac
U.S. Fish and Wildlife Service1,209 ac
Town or city75 ac
Private Park · 1,430 acConservation Area · 1,209 acPrivate Other or Unknown · 222 acLocal Park · 75 acPrivate Recreation or Education · 16 ac
The biggest protected places
| Place | Managed by | Acres | Public access |
|---|---|---|---|
| Winterfield Conservation Club Private Park | Private owners | 1,392 | Open |
| Kirtlands Warbler Wildlife Management Area Conservation Area | U.S. Fish and Wildlife Service | 1,209 | Restricted |
| Utility Corridor Private Other or Unknown | Private owners | 222 | Open |
| Township of Marion Park Local Park | Town or city | 75 | Open |
| Clare River Club Private Park | Private owners | 38 | Open |
| Eagle Archers Private Recreation or Education | Private owners | 16 | Open |
History along the way
History →1 old cemetery
Next door
Winterfield and its neighbors
Tap a town to see its outdoors.
| Town | Conserved | Parks |
|---|---|---|
| Winterfield | 10.1% | 4 |
| Summerfield | 3.9% | 3 |
| Redding | 1.7% | 1 |
| Marion | 12.9% | 3 |
| Clam Union | 13.6% | 3 |
Trail talk
Conditions, parking and favorite walks from Winterfield neighbors.
Weigh in
Is Au Sable State Forest - Gladwin Unit the best walk in Winterfield?
Your answer becomes a post in Town Square.
Share a tip
Trails, parks, preserves, courts and bike lanes © OpenStreetMap contributors (ODbL), map data as of 2026-09-28. Conserved land: USGS Gap Analysis Project, PAD-US. Measured against the Census town boundary. Forecast: National Weather Service.
How we measure
"Trails" are OpenStreetMap paths, bridleways, public tracks and unpaved footways, plus footways inside a park or preserve or on a named trail route. Sidewalks are left out. Areas are counted on a 20-meter grid, so overlapping parcels count once. "Conserved" includes conservation easements, which protect land from development but are usually private property. Trailheads are the nearest marked trailhead, public parking lot or information board within about 150 meters of a preserve. Dog rules come from OpenStreetMap when someone has tagged them; otherwise we show what’s typical for the land manager, or say the rules aren’t recorded.