Unit F

Wisconsin's vast lowland landscape of lakes, marshes, and scattered woodlots with minimal public access.

Hunter's Brief

Unit F spans most of Wisconsin's lower elevation terrain—a sprawling mix of wetlands, small lakes, prairie remnants, and fragmented woodlots with elevation changes rarely exceeding a few hundred feet. Nearly all land is private, making access a significant challenge; public hunting opportunities are extremely limited and require advance permission or designated public areas. Water is abundant throughout the unit via numerous lakes, marshes, and stream systems. The terrain is straightforward to navigate but logistically demanding for hunters seeking bear habitat on private ground.

?
Terrain Complexity
5
5/10
?
Unit Area
16,859 mi²
Vast
?
Public Land
5%
Few
?
Topography
0% mountains
Flat
?
Forest
12% cover
Sparse
?
Water
3.4% area
Abundant

Terrain Deep Dive

Landmarks & Navigation

Key reference points include the Niagara Escarpment (a notable cliff formation running through the unit), Green Bay and its associated reef systems (Oshkosh Reefs, Mansur Reef, Lighthouse Reef), and the Dells valleys (Lower Dells, The Dells, Lost Canyon). Major lake systems like Grass Lake, Lake Montesian, and numerous smaller impoundments serve as navigation anchors. Notable springs including Silurian Spring and Mammoth Spring mark groundwater-fed areas. The Cedarburg Bog and other significant wetlands function as landscape features visible on maps.

Several documented drumlins and ridges—Liberty Ridge, Military Ridge, Parnell Esker—provide subtle elevation changes useful for orientation.

Elevation & Habitat

The landscape is predominantly low-elevation, with rolling terrain rarely exceeding 1,600 feet and mostly staying below 1,000 feet. Habitat is characterized by scattered woodlots, wetland complexes, prairie remnants (both native and restored), and extensive marsh systems. Forest coverage is sparse relative to the total area, concentrated in small stands throughout what was historically a landscape of lakes, wetlands, and grassland.

Transitions between habitat types are gradual rather than dramatic—pockets of oak and maple woodlots emerge from prairie and marshland. The abundance of water creates extensive cattail marshes, sedge meadows, and shrub wetlands that define much of the terrain.

Elevation Range (ft)?
4101,657
01,0002,000
Median: 866 ft

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Access & Pressure

Access is the defining challenge—nearly 95% of Unit F is private land with virtually no maintained public road system within the unit boundaries. Hunters must secure landowner permission or rely on extremely limited public lands (boat launches, designated access points, small wildlife areas). Towns and developed areas surround much of the unit, making public spaces heavily used when available. The lack of organized road infrastructure means access is indirect—approaching via town roads and private drives.

This scarcity of public access paradoxically reduces hunting pressure in some areas while concentrating it heavily at known public spots. Most successful hunting requires established relationships with landowners or knowledge of small public parcels.

Boundaries & Context

Unit F encompasses the vast majority of Wisconsin's lower terrain, spanning from the Lake Michigan shoreline across the central and western portions of the state. The unit includes major water bodies like Green Bay, numerous inland lakes, and extensive marsh systems. It's bordered by some higher-elevation units to the north and represents the state's lowland hunting zone.

The sheer size—over 16,800 square miles—makes this the largest unit in Wisconsin. Most communities, towns, and population centers fall within Unit F's boundaries, making it the most developed hunting area in the state.

Land Cover Breakdown?
Mountains (forested)
0%
Mountains (open)
0%
Plains (forested)
11%
Water
3%

Water & Drainages

Water is abundant and defines the unit's character. Green Bay dominates the eastern portion with multiple associated bays, channels, and reef systems. Inland, lakes are dispersed throughout—Grass Lake, Horseshoe Lake, Lake Montesian, and dozens of smaller impoundments provide consistent water sources.

Extensive marsh complexes (Navarino Marsh, Morgan Marsh, Cascade Swamp, Deansville Marsh) form critical wetland habitat. Major streams and rivers include the Wisconsin River system, Onion River, and various smaller creeks. Swamps and flowages are numerous, creating a landscape where water scarcity is never a hunting concern.

Seasonal water levels in marshes can vary, but perennial sources are reliable throughout the unit.

Hunting Strategy

Unit F offers black bear habitat primarily in the scattered woodlots and transition zones between forest and wetland. Bears utilize the extensive marsh systems for spring food sources and move through wooded corridors between habitat patches. Early season hunting focuses on forest edges adjacent to wetlands and agricultural fields.

Bears often follow established routes through woodlots connecting different food sources—understanding private land access patterns is critical. The flat terrain limits elevation-based hunting strategy; instead, focus on identifying food sources (acorns, berries, agricultural crops) and established travel corridors. Success depends heavily on gaining private land access and scouting specific properties.

Late summer and fall offer better opportunities as bears concentrate in fruit and acorn-producing areas.