Unit S28

Buffalo Peak and Bear Mountain serve as dominant visual references for glassing and orientation across the unit. Mount Oso, Peters Peak, and the Three Sisters Peaks provide additional high-point navigation markers. Hunchback Pass and The Notch are key saddle crossings for traversing ridges.

High lakes—Betty, Lost, Hidden, Lake Mary Alice, Moon Lake, and Half Moon Lake—mark water sources and natural gathering points for sheep. These landmarks help break the alpine monotony and provide tactical positions for spotting.

Nearly all of S28 sits above 9,500 feet, with the highest peaks pushing into genuine alpine terrain. Lower elevations feature dense coniferous forest—spruce, fir, and aspen—that thin considerably as you climb. Above treeline, the unit opens into rocky slopes, alpine meadows, scree fields, and cirque basins where bighorn sheep thrive.

The transition zones between forest and open country are critical: cliffs and rocky outcrops provide escape terrain, while alpine vegetation offers forage. Vertical relief is substantial and constant throughout the unit.

Fair access is provided by 273.5 miles of roads, though exact road density remains incomplete data. Key vehicle corridors likely approach from the Vallecito area and Los Pinos drainage routes, concentrating initial access pressure. However, the steep, high-altitude terrain naturally limits where most hunters penetrate—most pressure will concentrate near trailheads and easily accessed ridges.

The unit's complexity and verticality mean dedicated glassing from high points and careful ridge-to-ridge hunting separates successful hunters from casual visitors. Early-season snow can quickly shut down some approaches.

S28 occupies high country across three counties (Hinsdale, La Plata, San Juan) centered on the Continental Divide, which forms its northern boundary. The Los Pinos River system frames the eastern and southern edges, while Vallecito Reservoir marks the western boundary. This is genuine alpine terrain—a moderate-sized unit but vertically significant, stretching from 7,660 feet to nearly 13,770 feet.

The unit's northern spine along the Divide provides natural orientation, and several historical place names like Tuckerville anchor local reference points.

Water is limited but present in high elevations. Divide Lakes, Betty Lake, Lost Lake, Hidden Lake, and Moon Lake anchor water availability in the upper basins. Springs including Coyote Basin Spring provide supplementary sources, though reliability decreases later in season.

Major drainages like Willow Creek, Falls Creek, Porcupine Creek, and Bear Creek flow through canyons offering travel corridors and occasional water lower down. The Los Pinos River system anchors the unit's eastern and southern sides but sits below most hunting terrain. Plan water strategy carefully; hauling from lower elevations is often necessary.

S28 is bighorn sheep country—this is alpine terrain built for spotting and stalking from distance. The strategy centers on gaining high elevation quickly to reach open country where you can glass rocky slopes and cirques. Sheep hold near cliffs and rocky escape terrain; familiarize yourself with cliff systems, particularly around Bear Mountain, Mount Oso, and the high lakes basins.

Elevation and terrain demand excellent physical conditioning; you'll hunt thin air on steep slopes. Early season offers better access before snow; late season may require snow travel skills. Water scarcity means knowing spring locations and high-lake positions.

Expect a vertical, technical hunt in serious alpine country.