Colorado GMU 107 Mule Deer Hunting
Washington, Lincoln and Kit Carson counties, northeast Colorado · 1,241 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 107 is like
GMU 107 is a 1,241-square-mile unit in the northeastern plains of Colorado, spanning Washington, Lincoln and Kit Carson counties. Elevation ranges from 4,400 feet to 5,800 feet, with typical terrain at 5,000 feet. The entire unit is gentle and rolling, with a mean slope of 1.5 degrees. This is open grassland and prairie country, characterized by gentle topography that favors foot travel, though legal access remains the primary constraint for hunters.
Roughly 97% of the unit is private land. Public hunting opportunity is extremely limited: approximately 0.1% (about 1 square mile) is State Wildlife Area ground that is generally open to public hunting. An additional 2.7% (about 34 square miles) is Colorado State Trust Land, but access to hunt this ground depends on enrollment in CPW's Public Access Program, which varies by parcel. No BLM land is present in the unit. The practical reality is that a hunter must secure permission on private ground or find enrolled Trust Land to hunt here.
Mule deer occupy the unit across its full mapped range, though CPW data indicates Winter Range covers only 6% of the unit and there are no mapped Winter Concentration areas. This pattern suggests deer use is dispersed across much of the unit without clustering into specific concentration zones. Seasonal movement and the extent of that movement will depend on snow cover and weather conditions as the fall progresses, but the dominance of private ownership means that such movements are difficult for public hunters to follow.
GMU 107 offers five mule deer seasons open to public applicants. Archery runs September 2–September 30 for either-sex or doe. Muzzleloader runs September 12–September 20 for either-sex, doe or buck. Three rifle seasons follow: 1st Rifle on October 14–October 18 for doe or buck; 2nd Rifle on October 24–November 3 for either-sex or doe; and Late Rifle on December 1–December 14 for either-sex, doe or buck. The unit experiences extreme hunter pressure. Draw difficulty for the easiest unit-wide buck or either-sex hunt code available to adult Colorado residents is easy, often drawing at zero preference points, though this does not reflect hunting crowding once drawn.
Terrain & elevation
- Elevation
- 4,400–5,800 ft, typically around 5,000 ft
- Steepness
- Gentle — mean slope 1.5°
- Slope breakdown
- 100% gentle · 0% moderate · 0% steep · 0% rugged
- Ground you can count on
- ~1 sq mi, plus ~34 sq mi of State Trust Land where access depends on enrollment
Land & access
About <1% of GMU 107 is public land a hunter can count on — State Wildlife Areas. 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%
- Private97%
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.
Where mule deer live in the unit
Colorado Parks & Wildlife maps mule deer seasonal ranges statewide. This is how much of GMU 107 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 Range6%used in winter
- Winter Concentration<1%where mule deer bunch up in winter
Mule Deer seasons & weapons (2026)
| Season | Dates | Tags offered |
|---|---|---|
| Archery | September 2 – September 30 | Either-sex, Doe |
| Muzzleloader | September 12 – September 20 | Either-sex, Doe, Buck |
| 1st Rifle | October 14 – October 18 | Doe, Buck |
| 2nd Rifle | October 24 – November 3 | Either-sex, Doe |
| Late Rifle | December 1 – December 14 | Either-sex, 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.
GMU 107 mule deer hunting FAQ
Is there any reliable public ground to hunt in this unit?
No. Only about 0.1% of the unit—roughly 1 square mile of State Wildlife Area—is generally open to public hunting. An additional 2.7% is Colorado State Trust Land, but access depends on CPW enrollment, which varies by parcel. The remaining 97% is private. A public hunter must either locate enrolled Trust Land or negotiate private-land permission.
Does this unit draw easily?
The easiest unit-wide buck or either-sex hunt for an adult Colorado resident draws at zero preference points on average, making it an easy-draw unit. However, this reflects low demand for tags relative to supply and does not predict hunter crowding once drawn. The unit experiences extreme hunter pressure, particularly during rifle seasons.
When do mule deer concentrate in this unit?
CPW mapping shows no Winter Concentration areas in this unit. While Winter Range covers 6% of the unit, deer distribution is dispersed rather than clustered. Hunters should expect to find deer spread across the unit without relying on specific concentration areas during any season.
How does the terrain affect hunting mobility?
The entire unit is gentle and rolling with a mean slope of 1.5 degrees, making foot travel straightforward. However, terrain walkability is separate from legal access: 97% of the unit is private ground, so ease of walking does not translate to places a public hunter can legally hunt without permission.
What is the best time to hunt mule deer here?
Early-season hunts (Archery in September, Muzzleloader September 12–20) fall during Velvet Shed and Early Fall Transition, when bucks are shedding velvet and becoming nocturnal. Later seasons (1st Rifle October 14–18, 2nd Rifle October 24–November 3) align with Early Fall Migration and Pre-Rut staging. Late Rifle (December 1–14) occurs during Late Rut and Winter Consolidation. Season choice depends on access availability and preference for early versus late-season conditions.
Does the Winter Range coverage mean mule deer leave the unit in fall?
No. Winter Range covers 6% of the unit and represents seasonal use rather than a migration. Mule deer use the unit across its full mapped range, and whether they concentrate on winter ground depends on snow depth and weather. The dominance of private ownership limits how thoroughly a public hunter can track those seasonal movements.
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.