Colorado GMU 9 Mule Deer Hunting
Larimer and Weld counties, northeast Colorado · 387 sq mi
Based on the EASIEST unit-wide buck or either-sex hunt code available to adult Colorado residents in the 2026 primary draw — the lowest preference-point tier that drew reliably. Private-land-only and Ranching for Wildlife hunts are excluded because neither is a unit-wide public-land opportunity — NOT because the public cannot draw them. A private-land-only license requires the hunter's own permission to hunt private ground; a Ranching for Wildlife license is valid on the participating ranches enrolled in that program. They are separate systems. Other weapons, seasons and nonresident applicants can require substantially more points. The band is a floor, not a target: even the easiest qualifying hunt here sits in that range.
What hunting GMU 9 is like
Unit 9 spans 387 square miles across Larimer and Weld counties in northeastern Colorado, from 4,900 feet to 7,900 feet in elevation. The terrain is predominantly gentle and rolling, with 85 percent of the unit classified as gentle, 14 percent moderate, and only 2 percent steep. The landscape is characterized by low-angle slopes and accessible elevation ranges that favor travel on foot, though accessibility to ground does not translate directly into legal hunting opportunity.
Most of Unit 9 is private land, which comprises roughly 71 percent of the unit. State Wildlife Areas and BLM lands that are generally open to public hunting total only about 0.5 percent, or roughly 2 square miles. An additional 2.8 percent is Colorado State Trust Land, huntable only where CPW has enrolled parcels in its Public Access Program; access varies by individual property. The remaining 26 percent of the unit is unclassified in ownership, meaning the source data does not establish a public or private designation. Together, the open and access-dependent public tracts make up a small fraction of the unit, making legal access the primary constraint for public-land hunters rather than terrain difficulty.
Mule deer occupy substantial portions of Unit 9 across seasonal ranges. Winter Range covers 66 percent of the unit, while Summer Range extends across 56 percent. Winter Concentration, where mule deer cluster during the post-rut recovery and winter periods, covers 20 percent of the unit. These seasonal ranges support a shift in deer distribution through the fall, with expectations that animals move toward winter concentration areas as the season advances and weather patterns drive migration, though the timing and extent of that shift vary with snowfall and temperature. The unit also encompasses migration corridors that facilitate movement between seasonal ranges.
Unit 9 offers six seasons in 2026, five of which are available to public applicants. Archery runs September 2–September 30 for either-sex hunting. Muzzleloader is September 12–September 20 for doe or buck. The 2nd Rifle season runs October 24–November 1 for doe only. The 3rd Rifle season runs November 7–November 15 for doe only. Late Rifle runs October 24–December 13 for doe or buck. A private-land-only season runs September 1–November 30 and is not accessible to public-land hunters. Archery and Muzzleloader seasons align with the velvet-shed and early fall transition phases. The 2nd Rifle season overlaps early fall migration and nocturnal buck movement before transitioning into early pre-rut staging. The 3rd Rifle and Late Rifle seasons extend into the primary rut period in November, with Late Rifle continuing into the late rut and winter consolidation phases. Weather at mid elevation cools from September highs around 75°F to November highs around 49°F, with October bringing roughly 1 inch of snowfall and November around 1.7 inches. Unit 9 experiences extreme hunter pressure. Draw difficulty is rated as Easy, indicating that the most accessible unit-wide either-sex or buck hunts often draw at zero preference points for adult Colorado residents, though other seasons, weapons, and nonresident applicants may require substantially more points.
Terrain & elevation
- Elevation
- 4,900–7,900 ft, typically around 5,900 ft
- Steepness
- Gentle — mean slope 5°
- Slope breakdown
- 85% gentle · 14% moderate · 2% steep · 0% rugged
- Ground you can count on
- ~2 sq mi, plus ~11 sq mi of State Trust Land where access depends on enrollment
Land & access
About <1% of GMU 9 is public land a hunter can count on — State Wildlife Areas and BLM. A further 3% is State Trust Land, which is huntable only where CPW has enrolled it.
- State Wildlife Area<1%
- BLM<1%
- State Trust Land3%
- Unclassified ownership26%
- Private71%
Colorado State Trust Land is open to public hunting only where it is enrolled in CPW's Public Access Program. Check current enrollment before planning around it.
“Ownership unclassified” means the source dataset does not record an owner for that acreage. It is not known to be public or private.
Where mule deer live in the unit
Colorado Parks & Wildlife maps mule deer seasonal ranges statewide. This is how much of GMU 9 each range covers — the single best clue to whether mule deer are here in September, in November, or only passing through. The layers overlap, so they do not add to 100%.
- Overall Range100%the full extent of range CPW maps for mule deer — near 100% on most units, and not a statement about when mule deer are present
- Winter Range66%used in winter
- Summer Range56%used in summer
- Winter Concentration20%where mule deer bunch up in winter
Mule Deer seasons & weapons (2026)
| Season | Dates | Tags offered |
|---|---|---|
| Archery | September 2 – September 30 | Either-sex |
| Muzzleloader | September 12 – September 20 | Doe, Buck |
| 2nd Rifle | October 24 – November 1 | Doe |
| 3rd Rifle | November 7 – November 15 | Doe |
| Late Rifle | October 24 – December 13 | Doe, Buck |
| Private-land only | September 1 – November 30 | Doe |
Dates span every hunt code of that type in this unit and can differ by code. Confirm the current brochure with Colorado Parks & Wildlife before applying.
Fall weather
- September — highs around 75°F, lows around 45°F (mid-elevation normals)
- October — highs around 61°F, lows around 33°F, about 1 in of snow (mid-elevation normals)
- November — highs around 49°F, lows around 24°F, about 1.7 in of snow (mid-elevation normals)
GMU 9 mule deer hunting FAQ
Is this unit realistic for a public-land hunter with no preference points?
The tag can be realistic at zero points, but the unit is difficult for a public-land-only hunter. Only about 0.5 percent is generally open to public hunting, with another 2.8 percent of State Trust Land requiring verified enrollment.
How much public land can a hunter actually hunt in Unit 9?
Generally open State Wildlife Areas and BLM total roughly 0.5 percent of the unit, about 2 square miles. An additional 2.8 percent is Colorado State Trust Land accessible only where CPW has enrolled parcels in its Public Access Program; availability and location vary by property. The remaining 71 percent is private, and 26 percent is unclassified in ownership. Public-land hunters are effectively confined to these small open tracts.
Does this unit's draw difficulty account for all seasons and weapons?
No. The Easy rating describes the most accessible unit-wide either-sex or buck hunts available to adult Colorado residents in the primary draw—typically the lowest preference-point tier that drew reliably. Other rifle seasons, the archery and muzzleloader seasons, nonresident applicants, and private-land-only hunts can require substantially more points. The rating is a floor for the easiest hunt, not a target for all hunts.
When is the rut in Unit 9, and which seasons overlap it?
The primary rut in Colorado mule deer runs November 11–November 25. The 3rd Rifle season (November 7–November 15) overlaps the rut's beginning and early phase. Late Rifle (October 24–December 13) spans the full rut period plus the late rut and winter consolidation phases. Archery and Muzzleloader occur during velvet shed in early September, before rut activity begins.
Does terrain difficulty match legal access difficulty here?
No. The unit is 85 percent gentle terrain, making it walkable on foot, but legal access is the actual constraint. With only about 0.5 percent generally open to public hunting and access-dependent State Trust Land scattered throughout, a hunter must locate and reach small open parcels within a largely private landscape. Terrain ease does not translate into roaming freedom on public ground.
How do mule deer distribution and hunter pressure interact on this unit?
Winter Concentration covers 20 percent of the unit, marking areas where mule deer cluster during the post-rut and winter periods. As fall progresses, animals typically shift toward those concentration areas, but timing varies with weather. Unit 9 experiences extreme hunter pressure. Concentrations of both animals and hunters in a unit with minimal public-land access create intense competition for the small open tracts available.
Data sources & methodology
- Colorado Parks & Wildlife — Big Game hunting — seasons, weapons, hunt codes and license types
- CPW — Primary Draw rules — how preference points and the hybrid draw work
- CPW — Deer statistics, draw recap and Drawn Out At reports — the point levels behind the draw-difficulty bands
- CPW — Secondary Draw — licenses remaining after the primary draw
- CPW — Maps and GIS (Species Activity Mapping) — mule deer seasonal range
- CPW — State Trust Land Finder — which State Trust acreage is enrolled and open to public hunting
- Federal and state land-ownership datasets — land ownership and access
- NOAA climate normals — fall weather
Draw difficulty is a qualitative band, not published odds — the note under the summary above states exactly which hunt code it describes. Land shares are separate, non-overlapping categories: publicly owned is not the same as open to hunting, and State Trust Land is huntable only where CPW has enrolled it. Unit data last updated August 31, 2026.