09177 - Le Roy Creek

Le Roy Creek encompasses 8,138 acres within the Chequamegon-Nicolet National Forest in northern Wisconsin. The area drains into the headwaters of the Riley Creek–Brule River system, with Le Roy Creek and its East Fork serving as the primary watercourses that shape the landscape. Water originating here flows northward toward the Brule River, carving valleys and supporting distinct riparian communities as it descends through the forest.

The forest composition reflects the transition between hardwood and conifer zones characteristic of the Great Lakes region. Sugar maple (Acer saccharum) and yellow birch (Betula alleghaniensis) dominate the upland slopes, while eastern hemlock (Tsuga canadensis) establishes dense, cool coves along stream corridors and north-facing aspects. Black spruce (Picea mariana) and tamarack (Larix laricina) occupy wetter depressions and seepage areas, creating a mosaic of moisture-dependent communities. The understory varies with these forest types: beaked hazelnut (Corylus cornuta) and bluebead lily (Clintonia borealis) characterize the hardwood understory, while threeleaf goldthread (Coptis trifolia) and spurred gentian (Halenia deflexa) carpet the damper hemlock and spruce zones. Great Lakes Jacob's Ladder (Polemonium lacustre), critically imperiled (IUCN), occurs in specialized microsites within this landscape, as does green spleenwort (Asplenium viride) and small round-leaved orchid (Galearis rotundifolia), species restricted to particular soil and moisture conditions.

The area supports a full complement of large carnivores and their prey. The federally endangered gray wolf (Canis lupus) and federally threatened Canada lynx (Lynx canadensis) hunt across these forests, their presence indicating intact predator-prey relationships. The federally endangered northern long-eared bat (Myotis septentrionalis) hunts insects in the canopy and understory, while barred owls (Strix varia) occupy the hemlock coves. Brook trout (Salvelinus fontinalis) inhabit the cold, clear streams, their presence dependent on the shade and temperature regulation provided by riparian hemlock. Amphibians—spring peepers (Pseudacris crucifer), green frogs (Lithobates clamitans), and American toads (Anaxyrus americanus)—breed in seepage pools and stream margins, their calls marking seasonal transitions. The proposed threatened monarch butterfly (Danaus plexippus) passes through during migration, relying on nectar sources in forest openings and edges.

Moving through Le Roy Creek, a visitor experiences the forest as a series of distinct ecological zones. Following Le Roy Creek itself, the landscape narrows into hemlock-dominated ravines where the canopy closes overhead and the understory opens to moss and fern. The sound of water is constant, and the air holds the cool, humid character of old-growth cove forest. Climbing away from the creek onto higher slopes, the forest transitions to mixed hardwood, the understory thickens with hazelnut and herbaceous plants, and the light increases. In the wettest depressions, where black spruce and tamarack dominate, the forest floor becomes spongy and the understory sparse. These transitions—from stream to slope to seepage area—occur repeatedly across the area, creating a landscape where elevation, aspect, and hydrology work together to determine which species occupy which ground.

The Forest County Potawatomi Community and Lake Superior Chippewa (Ojibwe) peoples historically inhabited and used this region. Indigenous nations established seasonal camps for hunting deer and bear, fished local waters, harvested wild rice from lakes and streams as a central food sovereignty practice, and gathered maple sugar in spring sugar camps. The area lies within territories ceded to the United States through treaties signed in 1836, 1837, 1842, and 1854. The forest functioned as a storehouse for foods, medicines, and functional products. Culturally significant sites, including those of Menominee origin, remain embedded within the landscape. Ho-Chunk peoples also occupied portions of Wisconsin and interacted with early European explorers in the broader region. Today, eleven American Indian tribes, including the Ojibwe and Potawatomi, retain hunting, fishing, and gathering rights on these National Forest lands and actively participate in land management through memorandums of understanding, with the Great Lakes Indian Fish and Wildlife Commission representing tribal interests.

Beginning in the 1880s, the region became part of the "Great North Woods" timber boom. Large lumber companies established temporary logging camps that moved once local timber was exhausted. An extensive network of logging railroads, starting in the 1880s, allowed extraction of timber from areas far from navigable rivers. Early logging focused on white pine and other softwoods that could be floated downriver. With the advent of railroads, hardwoods including maple and hemlock were also harvested. The Brule River historically served as a natural transportation system for the fur trade and early logging operations. By the 1920s and 1930s, intensive logging had left the land in this region cutover, burned over, and farmed out, resulting in widespread land abandonment and tax delinquency.

Federal acquisition of these lands began under the Weeks Act of 1911, which authorized purchase of cutover lands to protect headwaters and timber resources. The Wisconsin legislature granted federal authority to acquire and manage National Forest lands in the state through an Enabling Act passed in 1925. On March 2, 1933, President Franklin D. Roosevelt proclaimed the Nicolet National Forest, incorporating the Moquah, Flambeau, Oneida, and Oconto purchase units. In July 1933, the original Nicolet area was divided into "Nicolet East" and "Nicolet West." President Harry S. Truman enlarged both the Nicolet and Chequamegon National Forests in 1952 by adding lands acquired under the Bankhead-Jones Farm Tenant Act and additional purchases under the Weeks Act. On December 31, 1936, President Roosevelt issued Proclamation 2218, which transferred the Mondeaux Division from the Nicolet National Forest to the Chequamegon National Forest. The forest area grew from approximately 409,000 acres in 1929 to over 1.5 million acres through ongoing acquisitions and exchanges.

In the 1930s, the Civilian Conservation Corps built fire towers, fire lanes, and early forest roads throughout the surrounding district to facilitate reforestation and fire protection. The current forest cover largely results from massive replanting efforts by the CCC during this era. Most trees in the area are even-aged second-growth forest from this period. The two forests began being managed as a single administrative unit in 1993 and were officially combined into the Chequamegon-Nicolet National Forest in February 1998. The area is currently managed for multiple uses, including timber production. In 2001, this 8,138-acre area was designated as an Inventoried Roadless Area and is protected under the Roadless Area Conservation Rule.

Vital Resources Protected

Headwater Integrity for the Brule River Watershed This roadless area contains the headwaters of Riley Creek and the upper Brule River drainage, a major hydrological system in northern Wisconsin. The unroaded condition preserves the natural flow regime and sediment dynamics that sustain cold-water conditions throughout the downstream network, which supports populations of native fish species dependent on clear, cool water and stable spawning substrate.

Habitat Connectivity for Large Carnivores The area provides unfragmented forest habitat critical for federally endangered gray wolves and federally threatened Canada lynx, both of which require large, continuous territories to hunt and den. The roadless condition maintains the landscape permeability these species need to move across the forest without encountering roads—a primary source of mortality for both species—and to access prey populations distributed across the broader forest matrix.

Interior Forest Conditions for Federally Endangered Northern Long-Eared Bat The roadless forest interior provides the acoustic and structural habitat this species requires for foraging and roosting, away from the noise and light disturbance that roads introduce. Northern long-eared bats are sensitive to fragmentation and edge effects; the unbroken canopy allows them to navigate and hunt for insects without the disorientation caused by road corridors and their associated clearing.

Rare Plant Habitat for Great Lakes Jacob's Ladder This critically imperiled plant species (IUCN) occurs in the area and depends on the specific soil, moisture, and light conditions of undisturbed forest understory and wetland-upland transition zones. Road construction and the soil disturbance it causes would directly eliminate occupied habitat and alter the hydrological and light regimes that sustain this species' survival in Wisconsin.

Threats from Road Construction

Sedimentation and Stream Temperature Increase in Headwater Drainages Road construction requires cutting slopes and removing forest canopy, both of which accelerate erosion and deliver fine sediment into Riley Creek and the East Fork LeRoy Creek. This sedimentation smothers spawning gravel and reduces water clarity; simultaneous canopy removal allows solar radiation to warm the water, pushing temperatures above the cold-water threshold that native fish species—and the aquatic invertebrates that federally endangered northern long-eared bats depend on for food—require to survive.

Habitat Fragmentation and Increased Mortality Risk for Gray Wolves and Canada Lynx Roads divide the continuous forest into smaller patches, forcing these large carnivores to cross pavement to access prey and mates, exposing them to vehicle strikes—a leading cause of death for both species. The fragmentation also reduces the effective size of available habitat, making populations more vulnerable to local extinction and reducing genetic connectivity between distant populations.

Noise and Light Disturbance to Northern Long-Eared Bat Foraging Road construction creates a linear corridor of noise and artificial light that disrupts the echolocation and navigation behavior of federally endangered northern long-eared bats, reducing their foraging efficiency and forcing them to expend energy avoiding the disturbed zone. This effect persists indefinitely; even low-traffic roads create acoustic barriers that fragment the interior forest habitat this species requires.

Direct Habitat Loss and Hydrological Disruption for Great Lakes Jacob's Ladder Road fill and grading directly destroy occupied habitat for this critically imperiled plant, while the compaction and drainage patterns associated with road construction alter soil moisture and groundwater flow in adjacent wetland-upland transition zones. Because this species has an extremely limited range in Wisconsin, habitat loss in this roadless area represents an irreplaceable reduction in its global population.

The Le Roy Creek Roadless Area encompasses 8,138 acres of northern forest within the Chequamegon-Nicolet National Forest in Wisconsin. Access to this area is by foot only; no roads penetrate the interior. Two trailheads serve the area: Lauterman North Trailhead and Perch Lake Trailhead. Developed campgrounds at Lauterman Lake and Perch Lake provide base camps for multi-day trips.

Hiking and Backcountry Travel

The Whisker Lake Wilderness and Whisker Lake A trails provide foot access into the roadless interior. These trails offer the quiet, undisturbed forest experience that depends on the area's roadless condition. Hikers access the area from Lauterman North Trailhead or Perch Lake Trailhead. The absence of roads means interior trails remain free from motorized use and the noise and fragmentation that accompany vehicle access.

Fishing

LeRoy Creek, East Fork LeRoy Creek, Riley Creek, and the headwaters of the Brule River support wild brook trout populations. These are Class I and Class II waters managed for natural reproduction in a high-quality coldwater ecosystem. Riley Creek and Brule River tributaries are designated Outstanding National Resource Waters, receiving the highest level of water quality protection. The standard inland trout season runs from the first Saturday in May through September 30, with a daily bag limit of 5 trout (7-inch minimum). Anglers must hike in from the perimeter; no motorized access is available. The roadless condition protects these streams from the watershed fragmentation and temperature changes that road construction and maintenance cause.

Hunting

White-tailed deer, ruffed grouse, and woodcock are the primary game species. The area lies within Wisconsin's Northern Forest Zone for deer management. Standard Wisconsin seasons apply for archery, firearm, and muzzleloader. Hunters must observe the 150-yard closure around developed campgrounds and must remove portable stands within one week after season close. Off-road vehicle use for hunting is prohibited; hunters access the interior on foot from the perimeter. The roadless character provides a traditional hunting experience without motorized interference in the backcountry.

Birding

The area supports Barred Owl, Indigo Bunting, and other forest species. The region is covered by the Florence Christmas Bird Count circle, which has recorded 132 species in recent counts. Spring and early summer offer the best viewing for breeding species. Winter brings finch arrivals from the north. The Whisker Lake Wilderness Area Trail, accessible from the trailheads, is documented as a birding location. The undisturbed interior forest habitat depends on the roadless condition; road construction fragments forest and increases noise that disrupts bird activity.