GMU · Colorado Parks and Wildlife
GMU 91
Colorado, United States
The map opens on this unit. Turn on Hunting units in Layers to see its boundary with public land, your pins and the forecast.
About GMU 91
GMU 91 is a GMU in Colorado, United States, set by Colorado Parks and Wildlife. It covers about 199 km² (77 mi²). The town of Sterling is inside it.
HuntGrid draws its boundary from Colorado Parks and Wildlife's data for the 2026 season. The agency's regulations say which species and seasons use it.
- Unit code
- 91
- Area
- 199 km²
- Area (miles)
- 77 mi²
- Boundaries
- 2026
Public and protected land mapped inside it
HuntGrid's public land layers map about 42 km² of public or protected land inside it, 21% of the unit. Some protected land is privately owned (a conservation group's, for one). By manager, as the source names it:
| Manager | km² | Share |
|---|---|---|
| Colorado Parks & Wildlife | 35 | 18% |
| Colorado State Land Board | 6.8 | 3% |
| Colorado Division of Wildlife | 0.8 | under 1% |
Boundaries are approximate and aren't legal descriptions. Public land doesn't always mean you can hunt there: check your local regulations and posted signs.
Public land: U.S. Geological Survey (USGS) Gap Analysis Project (GAP), 2025, Protected Areas Database of the United States (PAD-US) 4.1
Seasons and regulations
Seasons for this unit that a person has checked against Colorado Parks and Wildlife's regulations:
| Species | Dates | Details |
|---|---|---|
| Elk (wapiti) | Sep 1, 2026 to Jan 31, 2027 | rifle source |
| American black bear | Sep 2, 2026 to Nov 22, 2026 | rifle source |
| Mule deer | Oct 24, 2026 to Nov 3, 2026 | antlered, rifle, draw source |
| Mule deer | Oct 24, 2026 to Nov 3, 2026 | antlerless, rifle, draw source |
| White-tailed deer | Oct 24, 2026 to Nov 3, 2026 | antlered, rifle, draw source |
| White-tailed deer | Oct 24, 2026 to Nov 3, 2026 | antlerless, rifle, draw source |
| Mule deer | Nov 4, 2026 to Nov 30, 2026 | archery, draw source |
| White-tailed deer | Nov 4, 2026 to Nov 30, 2026 | archery, draw source |
| Wild turkey | Nov 21, 2026 to Nov 29, 2026 | source |
| Cougar (mountain lion) | Nov 23, 2026 to Mar 31, 2027 | source |
| Mule deer | Dec 1, 2026 to Dec 14, 2026 | antlered, rifle, draw source |
| Mule deer | Dec 1, 2026 to Dec 14, 2026 | antlered, rifle, draw source |
| Mule deer | Dec 1, 2026 to Dec 14, 2026 | antlerless, rifle, draw source |
| White-tailed deer | Dec 1, 2026 to Dec 14, 2026 | antlered, rifle, draw source |
| White-tailed deer | Dec 1, 2026 to Dec 14, 2026 | antlered, rifle, draw source |
| White-tailed deer | Dec 1, 2026 to Dec 14, 2026 | antlerless, rifle, draw source |
| Mule deer | Dec 15, 2026 to Dec 31, 2026 | archery, draw source |
| White-tailed deer | Dec 15, 2026 to Dec 31, 2026 | archery, draw source |
The official regulations have the final word: check them before you hunt.
Units around it
Next to it in the same unit system
Other hunting units that cover part of it
What HuntGrid shows for GMU 91
- Its boundary on the map; tap inside it for the unit's card with the agency's regulations link.
- Public land and the other hunting units in the same view, each with its source.
- Season dates once a person has checked them, and legal shooting hours where the rule is checked.
- Hourly wind with a scent cone for every stand, and official weather alerts.
- Offline maps: download the area and use the map, your pins and the forecast with no signal.
Questions
How big is GMU 91?
About 199 km² (77 mi²), as HuntGrid maps Colorado Parks and Wildlife's boundary.
How much public or protected land is in GMU 91?
HuntGrid's public land layers map about 42 km² of public or protected land, 21% of the unit; the largest share is managed by Colorado Parks & Wildlife. Public land doesn't always mean you can hunt there.
Where are the season dates for GMU 91?
This page lists 18 seasons a person has checked against Colorado Parks and Wildlife's regulations; the official regulations have the final word.
Which units are next to GMU 91?
In the same unit system: GMU 89, GMU 90, GMU 92, GMU 93, GMU 96 and GMU 97.
More on huntgrid.net
Sources
Unit boundary: Colorado Parks and Wildlife. Boundaries for the 2026 season.
HuntGrid isn't affiliated with Colorado Parks and Wildlife. The official regulations and maps have the final word.