USA Bighorn Sheep Range Map
Rocky Mountain and Desert bighorn sheep range across the mountain West — one of the most prized and hard-to-draw tags in North America.
What this map shows
The shaded green area is the species' primary contiguous range as mapped by the USGS Gap Analysis Project in 2001. This represents the areas where populations are established, breeding, and ecologically meaningful — not individual sightings or scattered isolated populations.
An unshaded state doesn't mean the species is absent — it only means the species isn't part of the contiguous breeding range at the scale USGS mapped. Small, localized, or recently-reintroduced populations may exist in unshaded areas.
Important: data is from 2001
This is the best publicly-available research-grade range data for the species, but it was compiled from observations collected between roughly 1990 and 2001 and published by USGS in 2011. Many species have expanded significantly since then.
Examples: black bears have recolonized much of the Midwest and South, elk have been reintroduced in Kentucky, Virginia, Wisconsin, and Missouri, gray wolves have expanded substantially in the Northern Rockies and Western Great Lakes, and wild turkeys have pushed into the northern plains. For current distribution, always check your state wildlife agency.
Hunting notes
Tags are issued almost exclusively through state draw systems with odds often well under 1%. Top units are in Montana, Wyoming, Colorado, Idaho, Nevada, Arizona, New Mexico, and Utah. A sheep tag is often described as a once-in-a-lifetime hunt.