Populations of Rocky Mountain Bighorn sheep has fluctuated in this unit throughout the years, primarily due to respiratory disease event. In recent year populations have somewhat leveled out and the opportunity for limited hunting is now available. Collar data has shown that sheep tend to spend a majority of their November and into December within the Black Canyon of the Gunnison National Park. As December progresses the sheep tend to move onto the Gunnison Gorge National Conservation Area managed by the Bureau of Land Management (BLM). Locating sheep in legal areas can be a challenge at times.