Hazelton Peaks

Hazelton Peaks is a 10,029-acre Inventoried Roadless Area in the southern Bighorn Mountains, on the Powder River Ranger District of the Bighorn National Forest in Johnson County, Wyoming. The area occupies montane and subalpine country anchored by three named summits — Hesse Mountain, Hazelton Peak, and the sharp profile of Hazelton Pyramid. The land holds the upper headwaters of the North Fork Powder River, drained by Doyle Creek, Muddy Creek, and Basco Creek. These channels gather snowmelt and carry it east into the larger Powder River system. Water moves through cold, willow-lined step-pool streams under conifer canopy, with seasonal flow strongly tied to the high snowpack of the southern Bighorns.

Plant communities follow elevation and aspect closely. Rocky Mountain Lodgepole Pine Forest blankets the cooler slopes; Rocky Mountain Dry Subalpine Spruce-Fir Forest holds the higher ground, with Engelmann spruce (Picea engelmannii) and subalpine fir (Abies lasiocarpa) closing the canopy. Central Rockies Douglas-fir Forest occupies mid-elevation slopes. Rocky Mountain Aspen Forest fills moist draws and avalanche tracks, with quaking aspen over an understory of silvery lupine (Lupinus argenteus), showy green-gentian (Frasera speciosa), and orange agoseris (Agoseris aurantiaca). Rocky Mountain Limber and Bristlecone Pine Woodland persists on rocky exposures around the highest summits. The open ground takes several forms: Intermountain Mountain Sagebrush Steppe on warm, dry exposures with big sagebrush; Rocky Mountain Subalpine Meadow and Northern Rockies Subalpine Grassland on high benches, where American pasqueflower (Pulsatilla nuttalliana), grouseberry (Vaccinium scoparium), and many-flowered phlox (Phlox multiflora) flower in midsummer; Northern Rockies Subalpine Shrubland on transitional ground. The streamside corridors carry Rocky Mountain Subalpine Streamside Woodland and Streamside Shrubland — tealeaf willow (Salix planifolia), bull elephant's-head (Pedicularis groenlandica), and queen's crown (Rhodiola rhodantha). Alpine specialists like one-flower Kelseya (Kelseya uniflora) and alpine mountain-sorrel (Oxyria digyna) hold the highest exposed terrain.

The wildlife community spans canopy, meadow, rock, and stream. Moose (Alces alces) browse the willow streamside corridors; wapiti (Cervus canadensis) and mule deer (Odocoileus hemionus) work the meadow-forest edges; pronghorn (Antilocapra americana) move across the lower sagebrush openings. American pika (Ochotona princeps) and yellow-bellied marmot (Marmota flaviventris) hold the rocky terrain of the summits. North American porcupine (Erethizon dorsatum) moves through the spruce-fir. Dusky grouse (Dendragapus obscurus) hold the conifer-meadow interface; mountain chickadee (Poecile gambeli) and red crossbill (Loxia curvirostra) work the conifer cones; broad-tailed and rufous hummingbirds and Cassin's finch (Haemorhous cassinii) work the aspen and meadow edges. Mountain bluebird (Sialia currucoides) and chipping sparrow (Spizella passerina) hold the open meadows; golden eagle (Aquila chrysaetos) rides thermals over Hazelton Pyramid. Suckley's cuckoo bumble bee (Bombus suckleyi) and monarch (Danaus plexippus) use the wildflower meadows. Portions of this area fall within the potential range of several federally listed species; see the Conservation section for details.

A traveler climbing from the Doyle Creek bottom through aspen and lodgepole onto the open shoulder of Hazelton Peak moves from cool conifer shade into bunchgrass and wildflower meadow, with Hazelton Pyramid rising sharp to the north and the Powder River basin opening east.

Hazelton Peaks rises in the southern Bighorn Mountains of Johnson County, Wyoming, on the Powder River Ranger District in the headwaters of the North Fork Powder River. The country east of Hazelton Peaks — the Powder River and Clear Creek basins — sat at the center of one of the most contested landscapes of the nineteenth-century West. Indigenous occupation of the Bighorns runs deep: "archaeological and ethnographic investigations indicate that people have lived in the area known as the Bighorn National Forest for at least 10,000 years" [1]. After the spread of the horse, the Powder River country became "prime buffalo hunting grounds for the Sioux" [2]. The Lakota expanded westward from the Minnesota River across the Dakotas to the Yellowstone, displacing earlier Crow, Shoshone, and Cheyenne presence and establishing the Powder River basin as the dominant Plains horse-culture territory [2]. The Cheyenne and Arapaho moved across the same country.

Euro-American intrusion arrived with the gold trail. "In 1863, this prompted mountain man John Jacobs and partner John M. Bozeman to promote a new trail based on ancient Indian and trapper trails" [2]. "The problem with the Bozeman Trail was that it ran through the heart of the Powder River country — the premier buffalo hunting ground for the Lakota, Arapaho and Cheyenne tribes" [2]. The U.S. Army established three forts along the trail in 1866 — among them Fort Phil Kearny, north of present-day Buffalo — "provoking what came to be known as Red Cloud's War" [2]. On December 21, 1866, Capt. William J. Fetterman and his command of 80 men "were all killed" [2] in a fight near the fort. In August 1867 the army won the Wagon Box Fight just to the north. The 1868 Fort Laramie Treaty closed the Bozeman Trail and recognized the Powder River basin as Lakota hunting country. The 1876 campaign — the Great Sioux War — ended this arrangement; in November 1876, Col. Ranald Mackenzie attacked Dull Knife's Cheyenne village on the Red Fork of the Powder River, southwest of Hazelton Peaks [2]. By 1877, the tribes had surrendered and relocated to reservations [2].

In 1878 the army relocated Fort McKinney from Cantonment Reno on the Powder River "45 miles northwest to a site on Clear Creek where it spilled out of the Bighorns" [2]. The town of Buffalo grew up downstream to supply the post. "Buffalo was incorporated as a town in 1884" [2]. Ranchers moved into the Powder River basin in 1878 and the 1880s cattle boom transformed the country; many operations collapsed in the winter of 1886-87 [2]. "In April 1892 these tensions erupted into the so-called Johnson County War, when a private, 50-man army of landowners and range detectives invaded Johnson County intending to kill men they believed were cattle thieves" [2].

Federal management came in the same decade. "The Bighorn National Forest Reserve — precursor of the present Bighorn National Forest — was created in 1897, but there was plenty of tie hacking activity in the forest, producing many thousands of railroad ties for the expanding state and national rail networks" [2]. "The last major tie cutting operation in the Bighorn National Forest started west of Buffalo in late 1925. Operations ended around 1933" [3]. The 10,029-acre Hazelton Peaks Inventoried Roadless Area is now on the Powder River Ranger District and is protected under the 2001 Roadless Area Conservation Rule.

Vital Resources Protected

• Cold Headwater Stream Integrity of the North Fork Powder River: Hazelton Peaks holds the upper headwaters of the North Fork Powder River, drained by Doyle Creek, Muddy Creek, and Basco Creek. Rocky Mountain Subalpine Streamside Woodland and Streamside Shrubland shade these channels, anchor banks, and filter sediment. The roadless condition preserves source flows that feed the larger Powder River system and supports trout and aquatic invertebrates in the headwater reaches.

• Continuous Conifer and Aspen Forest: Rocky Mountain Lodgepole Pine Forest, Rocky Mountain Dry Subalpine Spruce-Fir Forest, Central Rockies Douglas-fir Forest, and Rocky Mountain Aspen Forest cover the area as a contiguous block. This unbroken canopy supports the closed-forest bird community — dusky grouse, mountain chickadee, red crossbill — and provides interior habitat for moose, wapiti, and mule deer. Roadless management preserves the connectivity that lets wide-ranging mammals move across the southern Bighorns.

• Alpine and Rocky-Summit Refugia: The Hesse Mountain–Hazelton Peak–Hazelton Pyramid summit complex carries Rocky Mountain Limber and Bristlecone Pine Woodland and exposed alpine plant assemblages including one-flower Kelseya (Kelseya uniflora) and alpine mountain-sorrel (Oxyria digyna). American pika and yellow-bellied marmot use the rocky terrain. These cold-adapted, slow-recovering communities function as climate refugia for species shifting upslope.

Potential Effects of Road Construction

• Sedimentation of Powder River Headwaters: Road cut-and-fill on the steep slopes around Hesse Mountain and Hazelton Peak intercepts subsurface flow and delivers chronic fine sediment to Doyle, Muddy, and Basco Creeks through ditch lines and culvert outlets. Fine sediment fills the gravel interstices that aquatic invertebrates and trout use for spawning and rearing, and undersized culverts become hydraulic barriers to fish passage. Road prisms continue to shed material for decades after construction.

• Forest Fragmentation and Edge Effects: Clearing a roadway through Lodgepole Pine, Subalpine Spruce-Fir, and Douglas-fir Forest replaces interior canopy with permanent edge habitat. Edges experience higher windthrow, altered microclimate, and increased predation on interior-forest birds. Wide-ranging mammals avoid road corridors and incur direct mortality at crossings, breaking the continuity of the high-elevation block that currently spans Hesse Mountain to Hazelton Pyramid.

• Limber Pine Disease Vectors and Invasive Species: Construction equipment, vehicle traffic, and exposed cut slopes spread white pine blister rust spores and mountain pine beetle vectors that threaten the area's Limber and Bristlecone Pine Woodland on the summit complex, and introduce non-native plants such as cheatgrass (Bromus tectorum) and dame's rocket (Hesperis matronalis) into Sagebrush Steppe and Aspen Forest understories. Once limber pine is lost from a stand, recolonization takes centuries.

Hazelton Peaks covers 10,029 acres on the Powder River Ranger District of the Bighorn National Forest, in the southern Bighorn Mountains of Johnson County, Wyoming. Access is from U.S. Highway 16 along the Cloud Peak Skyway between Buffalo and Ten Sleep, and from the Doyle Campground at the area's eastern boundary. No maintained trails are recorded within the polygon in the verified data, so use is dispersed cross-country travel — up the named drainages (Doyle Creek, Muddy Creek, Basco Creek) and onto the open shoulders of Hesse Mountain, Hazelton Peak, and Hazelton Pyramid.

Developed camping is at the Doyle Campground; dispersed backcountry camping is widely practiced inside the polygon under Forest Service direction. The Doyle Creek corridor is a popular base for short hikes, fishing, and access to the southern peaks.

Hunting is a primary use. The mix of Rocky Mountain Lodgepole Pine Forest, Subalpine Spruce-Fir Forest, Aspen Forest, and Subalpine Meadow supports wapiti (Cervus canadensis) and mule deer (Odocoileus hemionus); the lower sagebrush openings carry pronghorn (Antilocapra americana); the willow streamside corridors hold moose (Alces alces), which are managed under limited-quota tag draws. Wyoming Game and Fish Department hunt-area boundaries, license requirements, and season dates apply. Hunters who walk in from the road corridor have the country largely to themselves once away from the highway.

Fishing concentrates on the headwater creeks. Doyle Creek, Muddy Creek, and Basco Creek hold small trout in cold, willow-lined step-pool waters typical of the southern Bighorns. The upper North Fork Powder River drainage carries the bulk of the angling opportunity. Anglers should consult Wyoming Game and Fish Department regulations for water-specific species and limits and expect short-rod conditions on willow-lined banks.

Birding is shaped by the elevation transitions and the contrast between conifer canopy, meadow openings, and rocky summits. Three eBird hotspots within 24 kilometers — Bighorn NF–Meadowlark Lake area (108 species), Tensleep Canyon–Leigh Creek Campground (72 species), and West Tensleep Campground & Lake (48 species) — frame the regional species pool. Inside the area, expect dusky grouse (Dendragapus obscurus) at the conifer-meadow interface; mountain chickadee (Poecile gambeli) and red crossbill (Loxia curvirostra) in the conifer; broad-tailed and rufous hummingbirds on the aspen and meadow edges; mountain bluebird (Sialia currucoides) and chipping sparrow (Spizella passerina) over the meadows; and golden eagle (Aquila chrysaetos) riding thermals along the summit rims.

Photographers will find strong material around the summit profile of Hazelton Pyramid, the broad meadows below Hesse Mountain, the wildflower bloom in midsummer, and the willow corridors at first and last light. Snowshoeing and backcountry skiing are possible during winter; the southern Bighorns hold heavy snow and access depends on the Cloud Peak Skyway being plowed.

Every activity described here depends on the roadless condition. The cold headwater streams, the interior-forest birding, the elk and moose habitat, and the dispersed quality of use all turn on the absence of new roads cutting across the polygon. Road construction would replace the present quiet, low-density use with the narrow strip a vehicle can reach.