CO Bighorn Sheep Unit S64 — UPPER DOLORES RIVER

CO S64 — UPPER DOLORES RIVER. Terrain & Access S64 spans 5,300–9,640 feet across 590,000 acres in southwestern Colorado's San Miguel County drainage. With 68% public land, the unit offers solid opportunity for self-reliant hunters willing to work rough, high-elevation terrain. Lower foothills transition to alpine ridge systems and rocky slopes—typical Rocky Mountain sheep habitat. Access via truck and boot separates dedicated hunters from casual applicants. Trophy Potential The counties overlapping S64 hold a modest record-book history—four documented trophy-class entries over three decades. Production has been sporadic but consistent: sheep taken from this area have occasionally exceeded..