Colorado GMU 191 Pronghorn Hunting
Larimer County, northeast Colorado · 317 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 191 is like
Unit 191 spans 317 square miles in the northeast foothills and rolling country of Larimer County. The terrain is rolling to moderately steep, with 43% of the unit in gentle slopes, 41% moderate, 15% steep, and 1% rugged. Elevation ranges from 5,200 feet to 8,900 feet, with typical mid-elevation around 7,000 feet. Pronghorn occupy portions of this country across fall and winter.
The unit is roughly split between public and private ownership. About 44% of the ground—approximately 138 square miles—is generally open to public hunting, consisting of National Forest, State Wildlife Areas, and BLM land. An additional 5.5% is Colorado State Trust Land, where hunting access depends on CPW's Public Access Program enrollment; not all parcels may be open. About 48% of the unit is private land, and approximately 2.8% is unclassified by the available records. Road and trailhead access are governed by these ownership patterns and seasonal management.
Pronghorn range covers 24% of the unit overall, with a Winter Range layer spanning 12% and a Winter Concentration layer marking 3%—areas where pronghorn cluster during the winter phase. These seasonal layers indicate pronghorn presence through fall and into winter, with concentration on specific ground during that period. No large Summer Range is mapped, so limited pronghorn occupancy is expected during the earlier months of the hunting seasons offered.
The unit offers three seasons open to applicants: Muzzleloader September 21–29 for doe or buck, Late Rifle November 1–December 31 for doe, and a private-land-only doe or buck season October 3–11. The muzzleloader season spans the primary rut and early post-rut period, when pronghorn are actively ranging and grouped by social behavior. The late rifle season falls during the fall grouping and winter transition phase. Overall hunter pressure here is low, and the draw for the easiest unit-wide public-land hunt code is easy, often drawing at zero preference points. Weather in September brings highs around 70°F and lows around 41°F with minimal snow. By November, highs drop to around 44°F and lows to around 22°F, with average monthly snowfall of 3.4 inches.
Terrain & elevation
- Elevation
- 5,200–8,900 ft, typically around 7,000 ft
- Steepness
- Steep — mean slope 14.1°
- Slope breakdown
- 43% gentle · 41% moderate · 15% steep · 1% rugged
- Ground you can count on
- ~138 sq mi, plus ~18 sq mi of State Trust Land where access depends on enrollment
Habitat & cover
What actually grows here, by elevation. Each band adds to 100% on its own — these are shares of that band, not of GMU 191.
Lower elevations
- Sagebrush61%
- Grass and meadow24%
- Conifer9%
- Other cover4%
- Riparian3%
Mid elevations
- Sagebrush45%
- Conifer38%
- Grass and meadow12%
- Riparian2%
- Other cover2%
Higher elevations
- Conifer63%
- Sagebrush23%
- Grass and meadow8%
- Other cover3%
- Riparian3%
Cover classes from the USGS National Land Cover Database, split into elevation bands. “Other cover” is the remainder of the classification — bare ground, water, agriculture and developed land — and is left unnamed rather than guessed at.
Land & access
About 44% of GMU 191 is public land a hunter can count on — National Forest, State Wildlife Areas and BLM. A further 6% is State Trust Land, which is huntable only where CPW has enrolled it.
- National Forest33%
- State Wildlife Area10%
- BLM<1%
- State Trust Land6%
- Unclassified ownership3%
- Private48%
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 pronghorn live in the unit
Colorado Parks & Wildlife maps pronghorn seasonal ranges statewide. This is how much of GMU 191 each range covers — the single best clue to whether pronghorn are here in September, in November, or only passing through. The layers overlap, so they do not add to 100%.
- Overall Range24%the full extent of range CPW maps for pronghorn — near 100% on most units, and not a statement about when pronghorn are present
- Winter Range12%used in winter
- Winter Concentration3%where pronghorn bunch up in winter
Pronghorn seasons & weapons (2026)
| Season | Dates | Tags offered |
|---|---|---|
| Muzzleloader | September 21 – September 29 | Doe, Buck |
| Late Rifle | November 1 – December 31 | Doe |
| Private-land only | October 3 – October 11 | Doe, Buck |
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 70°F, lows around 41°F, about 0.1 in of snow (mid-elevation normals)
- October — highs around 56°F, lows around 30°F, about 2.3 in of snow (mid-elevation normals)
- November — highs around 44°F, lows around 22°F, about 3.4 in of snow (mid-elevation normals)
GMU 191 pronghorn hunting FAQ
Can someone with zero preference points draw this unit?
Yes. The easiest unit-wide public-land hunt code—the muzzleloader doe or buck season—draws reliably at zero points, though applicants below that tier sometimes draw as well. The late rifle doe season and the secondary draw and leftover list are separate systems that may also provide opportunities.
When do pronghorn concentrate in this unit?
A 3% Winter Concentration layer marks ground where pronghorn cluster, particularly during the late fall and winter period. Hunters should expect pronghorn to be most accessible on concentrated ground during the November late rifle season and in the post-rut phase of the September muzzleloader season.
How much public ground can a hunter actually access?
Approximately 44% of the unit—about 138 square miles—is generally open to public hunting on National Forest, State Wildlife Areas, and BLM. An additional 5.5% is State Trust Land where access depends on CPW's Public Access Program enrollment, so availability varies by parcel. Private inholdings and access routes still govern where a hunter can reach.
Is this unit realistic for someone with no preference points?
Yes. The muzzleloader season draws at zero points reliably, making it accessible to new applicants without preference-point history. A first-time applicant should also consider the secondary draw (a separate June random draw open to anyone) and the leftover list for additional opportunities.
What is the terrain like for a hunter on foot?
The unit is rolling to moderately steep overall, with 43% gentle slopes and 41% moderate grades. Steep terrain comprises 15% of the unit, so most ground is manageable for foot hunters, though specific drainage approaches and elevation will vary the difficulty of reaching pronghorn concentrations.
Does pronghorn distribution shift as the season progresses?
Pronghorn range maps show a 12% Winter Range layer distinct from overall range coverage, indicating seasonal use. Hunters should expect pronghorn to move into and concentrate more heavily on winter ground as the season advances from September into November, though specific timing and distribution vary with weather and snow.
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 — Pronghorn 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
- USGS / MRLC — National Land Cover Database — habitat and cover classes by elevation band
- CPW — Maps and GIS (Species Activity Mapping) — pronghorn seasonal range
- CPW — State Trust Land Finder — which State Trust acreage is enrolled and open to public hunting
- USGS PAD-US — Protected Areas Database of the United States — land ownership and access
- Daymet daily climate, 1991–2020 (Oak Ridge National Laboratory) — 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 September 24, 2026.