Calf - Copeland Creek

The Calf – Copeland Creek Inventoried Roadless Area encompasses 15,696 acres within the Umpqua National Forest in Douglas County, Oregon. The landscape is mountainous, with prominent features including Buckhead Mountain, Twin Lakes Mountain, Hole in the Ground, Raven Rock, and Bear Wallow. The area protects the headwaters of Copeland Creek, along with Calf Creek, Wilson Creek, Prong Creek, Deception Creek, Twin Lake Creek, and Twin Lakes—streams that originate at higher elevations, collect snowmelt and groundwater, and descend through forested valleys toward the Umpqua watershed.

Pacific Northwest Dry Douglas-fir Forest dominates, with Douglas-fir (Pseudotsuga menziesii) forming the primary canopy alongside Pacific madrone (Arbutus menziesii), Oregon oak (Quercus garryana), and sugar pine (Pinus lambertiana) on drier exposures. At higher elevations, Pacific Northwest Dry Silver Fir Forest and California Red Fir Forest take over, with California red fir (Abies magnifica) replacing the lowland canopy on upper slopes. Along stream corridors, Pacific Northwest Mountain Streamside Forest communities include western red-cedar (Thuja plicata), western hemlock (Tsuga heterophylla), and grand fir (Abies grandis) above an understory of vine maple (Acer circinatum), Pacific rhododendron (Rhododendron macrophyllum), and devil's club (Oplopanax horridus). On Pacific Northwest Wooded Lava Flow areas, greenleaf manzanita (Arctostaphylos patula) colonizes exposed surfaces. Mountain meadow openings host beargrass (Xerophyllum tenax) and American bistort (Bistorta bistortoides), along with the false silverback (Rainiera stricta), listed as imperiled by NatureServe. Pacific yew (Taxus brevifolia), assessed as near threatened by IUCN, grows in shaded understories throughout.

Douglas's squirrel (Tamiasciurus douglasii) caches conifer seeds across the canopy zone, while American black bear (Ursus americanus) and mule deer (Odocoileus hemionus) move through upland and streamside habitat seasonally. Mountain lion (Puma concolor) and gray wolf (Canis lupus) are confirmed in the area. Sooty grouse (Dendragapus fuliginosus) occupies mature conifer forest, and the olive-sided flycatcher (Contopus cooperi) calls from snag perches at forest edges. Along cold-water streams, coho salmon (Oncorhynchus kisutch) and rainbow trout (Oncorhynchus mykiss) use gravel spawning substrates maintained by the intact streamside forest canopy. In damp streamside zones, the Pacific giant salamander (Dicamptodon tenebrosus) hunts invertebrates beneath cobble. The Cascades frog (Rana cascadae), assessed as near threatened by IUCN, occupies cold montane pools and streams. Portions of this area fall within the potential range of several federally listed species; see the Conservation section for details.

Visitors entering via the Calf Trailhead or Twin Lakes East and West trailheads access a trail network including the Twin Lakes Trail (1500, 2.2 miles), Twin Lakes Loop (1521, 0.8 miles), and Deception Trail (1510, 1.7 miles), all on native-material surfaces. On the Twin Lakes Trail, the forest transitions from dry Douglas-fir on lower slopes through a denser understory of Pacific rhododendron and vine maple before reaching the Twin Lakes. Deception Creek drainage offers cooler air, higher moisture, and streamside habitat where Pacific giant salamanders are most active under cedar logs and cobble. Ascending toward Twin Lakes Mountain, beargrass-dominated openings and the thinning understory of silver fir forest mark the upper elevation transition.

Archaeological evidence suggests that people have lived in the Umpqua Basin for over 10,000 years [7]. The lands encompassing today's Calf – Copeland Creek Inventoried Roadless Area lay within the ancestral territory of at least four distinct peoples: the Umpqua in the main valley, the Southern Molalla in the forest uplands, the Yoncalla in the northern valley, and the Cow Creek Band along the Myrtle Creek, Cow Creek, and South Umpqua drainages [7]. The Cow Creek Umpqua lived between the Cascade and Coast Ranges along the South Umpqua River and its primary feeder stream, Cow Creek, using the surrounding watershed extensively for hunting, fishing, and gathering [4].

European contact with the lower Umpqua came early. In 1791, American Captain James Baker entered Umpqua Indian lands and traded with the Lower Umpqua for twelve days [2, 3]. Hudson Bay Company trappers made sustained contact with coastal tribes beginning in 1820, and the first American fur trapper, Jedediah Smith, followed in 1828 [3]. When gold was discovered in Jackson County in the early 1850s, the region was flooded with miners from California who filed claims on local rivers and streams [4]. Settlers began taking up land under the Donation Land Claims Act of 1850, placing mounting pressure on tribal territories [5].

On September 19, 1853, the Cow Creek Umpqua became one of the first two Tribes in Oregon to sign a treaty with the United States [4]. Ratified by the U.S. Senate on April 12, 1854, the agreement required the Cow Creek Umpqua to cede more than 800 square miles of southwestern Oregon for $12,000 and the promise of protection [1, 4]. The Cow Creek received roughly 2.3 cents per acre for land the federal government was simultaneously selling to settlers for $1.25 per acre [4]. The Umpqua, Southern Molalla, and Yoncalla were subsequently removed to the Grand Ronde and Siletz Reservations in the mid-nineteenth century [7].

Federal land management arrived in 1893, when the Cascade Forest Reserve was established by presidential proclamation, bringing these lands under federal protection for the first time [6, 7]. On March 2, 1907, a separate Umpqua Forest Reserve was created from public domain land [6]. In 1908, Congress designated close to a million acres of this reserve as the Umpqua National Forest [7]. Forest Service staff immediately began building trails, fighting fires, and monitoring grazing; that effort expanded in the 1930s through the labor of Civilian Conservation Corps crews [7].

Commercial resource extraction intensified across the twentieth century. Logging and mining became important local industries, particularly after the road connecting Roseburg and Diamond Lake was completed in 1940 [5, 7]. Intensive logging continued for decades, peaking through the 1980s and early 1990s [5]. The Northwest Forest Plan of 1994 shifted management priorities toward protecting key species and restoring watersheds [5]. Today, the 15,696-acre Calf – Copeland Creek Inventoried Roadless Area is protected within the Diamond Lake Ranger District under the 2001 Roadless Area Conservation Rule.

Vital Resources Protected

Interior Forest Habitat

Pacific Northwest Dry Douglas-fir Forest covers the majority of the Calf – Copeland Creek area, providing continuous unfragmented canopy across 15,696 acres. This interior condition sustains the Northern spotted owl (Strix occidentalis caurina)—which requires large blocks of structurally complex forest—and supports the false silverback (Rainiera stricta), a rare understory composite listed as imperiled by NatureServe, in the shade-dependent microhabitats it requires. The roadless condition prevents edge effects from penetrating the forest interior, preserving the closed canopy and structural diversity on which interior-dependent species depend.

Cold Headwater Stream Integrity

The area protects the headwaters of Copeland Creek and six named tributaries—Calf Creek, Wilson Creek, Prong Creek, Deception Creek, Twin Lake Creek, and Twin Lakes—all originating within the roadless boundary. Intact streamside forest communities buffer these channels, maintaining cool water temperatures and fine-gravel substrates that coho salmon (Oncorhynchus kisutch) require for spawning and rearing. The Cascades frog (Rana cascadae), assessed as near threatened by IUCN and sensitive to water quality changes, uses these cold pools and margins; its persistence here depends on sedimentation-free conditions that road-free headwaters naturally provide.

Climate Refugia

The area spans an elevational gradient from oak woodland and mixed conifer forest at lower margins up through Pacific Northwest Mountain Hemlock Forest and California High Mountain Meadow communities near ridgetops. This gradient creates microclimate refugia allowing species to shift ranges without crossing road corridors. The silver-haired bat (Lasionycteris noctivagans), assessed as vulnerable by IUCN, uses these elevational corridors during seasonal movements; the Clustered Lady's Slipper (Cypripedium fasciculatum), also vulnerable, requires the stable, undisturbed forest floor that intact upland communities provide.

Potential Effects of Road Construction

• Sedimentation and Stream Warming. Road construction on the mountainous slopes of Calf – Copeland Creek would expose cut slopes and road beds to erosion, delivering sediment to Copeland Creek headwaters and its tributaries. Sediment deposition fills the gravel interstices that coho salmon use for egg incubation and smothers the cobble and leaf-litter habitat of the Pacific giant salamander (Dicamptodon tenebrosus). Canopy removal along road corridors raises water temperatures in headwater channels, eliminating thermal refugia that cold-water species require through warm summer months.

• Habitat Fragmentation. Road corridors create linear edge effects that penetrate the Pacific Northwest Dry Douglas-fir Forest, reducing the extent of functional interior habitat available to the Northern spotted owl and other area-sensitive species. Fragmentation increases predator access and disrupts the structural complexity of old-growth snag habitat that Lewis's woodpecker (Melanerpes lewis) requires, and interrupts the unfragmented canopy corridors that the gray wolf (Canis lupus) and North American wolverine (Gulo gulo luscus) need to move through the landscape.

• Invasive Species Establishment. Road corridors function as dispersal vectors for invasive plant species, which colonize disturbed soil on margins and spread into adjacent forest communities. The Pacific Northwest Oak Woodland and Pacific Northwest Mountain Grassland communities within this area are particularly susceptible: fire suppression has already reduced their natural disturbance regime, and invasive introductions via road corridors would accelerate conversion of these open habitats to dense shrub cover. This process is difficult to reverse and continues to expand from road margins long after construction is complete.

The Calf – Copeland Creek Roadless Area offers trail-based access to one of the more remote corners of the Diamond Lake Ranger District. Three developed trailheads—Calf, Twin Lakes East, and Twin Lakes West—serve a trail network built on native-material surfaces and covering more than ten miles of documented routes within the roadless boundary.

Trails and Hiking

The Twin Lakes Trail (1500) provides the primary route into the interior, running 2.2 miles through Douglas-fir and silver fir forest to the Twin Lakes. It connects to the Twin Lakes Loop (1521, 0.8 miles), which encircles the lakes, and to the Twin Lake West Trail (1521A, 0.5 miles), which accesses the western shore. The Deception Trail (1510, 1.7 miles) follows Deception Creek through a shaded, moist streamside corridor and provides access to the southern portion of the roadless area. Additional Forest Service trail segments (NFST series) extend through terrain above Bear Wallow and along the drainage systems feeding Copeland Creek headwaters, providing connecting routes across the area.

Equestrian Use

The Twin Lakes Trail (1500), Twin Lakes Loop (1521), Twin Lake West Trail (1521A), and Deception Trail (1510) are all documented for horse use. The Calf and Twin Lakes trailheads provide the primary stock access points. Stream crossings along Deception Creek and the open terrain near the Twin Lakes provide natural watering and resting points during longer rides.

Camping

Horseshoe Bend Campground serves as the developed base for visitors to this portion of the forest. Dispersed camping within the roadless area follows Umpqua National Forest guidelines for Leave No Trace and stock use.

Birding

The Umpqua NF–Toketee Lake eBird hotspot, located within 24 kilometers of this area, has recorded 157 confirmed species across 137 checklists—one of the most active monitoring points in the region. Within the roadless area, mature Douglas-fir and silver fir forest supports sooty grouse (Dendragapus fuliginosus), olive-sided flycatcher (Contopus cooperi), Canada jay (Perisoreus canadensis), and hairy woodpecker (Leuconotopicus villosus). Lewis's woodpecker (Melanerpes lewis) uses forest-edge snag perches. The streamside corridors along Deception Creek and Calf Creek attract species associated with riparian forest, including common merganser (Mergus merganser).

Fishing

Calf Creek, Deception Creek, and the Copeland Creek headwaters support coho salmon (Oncorhynchus kisutch) and rainbow trout (Oncorhynchus mykiss) in cold, well-oxygenated reaches. Brook trout (Salvelinus fontinalis) are also documented in the area. Fishing access is from trail crossings along the creek drainages.

Roadless Character

The recreation described here depends on the absence of roads. Extended horse travel on the Twin Lakes and Deception trails, backcountry birding along undisturbed stream corridors, and cold-water fishing for wild salmon and trout in Copeland Creek headwaters all require the quiet, intact character that roadless designation preserves. Road construction would bring sedimentation to spawning habitat, motorized noise to trail corridors, and edge-effect degradation to the interior forest habitat that sooty grouse, Lewis's woodpecker, and the Northern spotted owl require.