GMU · Colorado Parks and Wildlife
GMU 99
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 99
GMU 99 is a GMU in Colorado, United States, set by Colorado Parks and Wildlife. It covers about 4,283 km² (1,654 mi²). Towns inside it include Fort Morgan and Brush.
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
- 99
- Area
- 4,283 km²
- Area (miles)
- 1,654 mi²
- Boundaries
- 2026
Public and protected land mapped inside it
HuntGrid's public land layers map about 230 km² of public or protected land inside it, 5% 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 State Land Board | 217 | 5% |
| Colorado Parks & Wildlife | 12 | under 1% |
| Byers Park and Recreation District | 0.3 | under 1% |
| City of Brush | 0.2 | under 1% |
| City of Fort Morgan | 0.1 | under 1% |
| City of Keenesburg | 0.0 | under 1% |
| RE-J3 School Board | 0.0 | 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 |
| 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 | 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 | 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 99
- 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 99?
About 4,283 km² (1,654 mi²), as HuntGrid maps Colorado Parks and Wildlife's boundary.
How much public or protected land is in GMU 99?
HuntGrid's public land layers map about 230 km² of public or protected land, 5% of the unit; the largest share is managed by Colorado State Land Board. Public land doesn't always mean you can hunt there.
Where are the season dates for GMU 99?
This page lists 15 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 99?
In the same unit system: GMU 94, GMU 96, GMU 97, GMU 100, GMU 104, GMU 105, GMU 106, GMU 107 and GMU 951.
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.