Colorado GMU 6 Mule Deer Hunting
Jackson County, northwest Colorado · 354 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 6 is like
GMU 6 covers 354 square miles in Jackson County in Colorado's northwest region, with elevations ranging from 7,700 feet to 12,900 feet and a typical elevation around 8,400 feet. The terrain is rolling, with some steeper breaks: 69% of the unit is gentle, 25% is moderate, and 6% is steep or rugged. The combination of elevation and slope creates country that is walkable but variable in difficulty.
Roughly 30% of the unit—about 108 square miles—is generally open to public hunting on BLM, National Forest, and State Wildlife Area lands. An additional 9.5% is Colorado State Trust Land, where hunting access depends on CPW enrollment in the Public Access Program; specific parcels open to hunters are not known unit-wide. The remaining 60% is private land. Public ownership is not straightforward entry: roads, trailheads, inholdings, and seasonal restrictions all apply.
Mule deer occupy Summer Range across the entire unit and are mapped across Overall Range at 100%. Migration Corridors cover 35% of the unit, indicating significant movement through the area as the season progresses and conditions change. Winter Range covers 22% of the unit, with a Winter Concentration layer marking 9% where mule deer cluster during the cold months. As fall advances, a hunter should expect deer to shift toward winter ground, though timing and extent vary with weather and snow.
The unit offers seven public-land seasons across multiple weapons. Archery runs September 2–30 on either-sex basis. Muzzleloader is September 12–20 for doe and buck. Four numbered rifle seasons follow: 1st Rifle October 14–18 (buck only), 2nd Rifle October 24–November 1 (buck), 3rd Rifle November 7–15 (buck), and 4th Rifle November 18–22 (buck). Early Rifle, separate from the numbered block, runs September 5–October 7 on either-sex basis. The unit also holds a private-land-only season and a Ranching for Wildlife hunt. Hunter pressure is extreme, and the draw is moderate, requiring 1–2 preference points for the easiest unit-wide buck or either-sex hunt available to adult Colorado residents.
Terrain & elevation
- Elevation
- 7,700–12,900 ft, typically around 8,400 ft
- Steepness
- Gentle — mean slope 8.3°
- Slope breakdown
- 69% gentle · 25% moderate · 6% steep · 0% rugged
- Ground you can count on
- ~108 sq mi, plus ~34 sq mi of State Trust Land where access depends on enrollment
Land & access
About 30% of GMU 6 is public land a hunter can count on — BLM, National Forest and State Wildlife Areas. A further 9% is State Trust Land, which is huntable only where CPW has enrolled it.
- BLM17%
- National Forest13%
- State Wildlife Area<1%
- State Trust Land9%
- Unclassified ownership<1%
- Private59%
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 6 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%.
- Summer Range100%used in summer
- 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
- Migration Corridors35%movement between ranges, not residence
- Winter Range22%used in winter
- Winter Concentration9%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 |
| 1st Rifle | October 14 – October 18 | Buck |
| 2nd Rifle | October 24 – November 1 | Buck |
| 3rd Rifle | November 7 – November 15 | Buck |
| 4th Rifle | November 18 – November 22 | Buck |
| Early Rifle | September 5 – October 7 | Doe, Buck |
| Private-land only | December 1 – December 31 | Doe |
| Ranching for Wildlife | Dates vary by hunt code | 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 67°F, lows around 35°F, about 0.2 in of snow (mid-elevation normals)
- October — highs around 53°F, lows around 26°F, about 3.6 in of snow (mid-elevation normals)
- November — highs around 40°F, lows around 17°F, about 10 in of snow (mid-elevation normals)
GMU 6 mule deer hunting FAQ
Can a hunter with zero preference points draw here?
Not reliably. The unit draws at moderate difficulty, requiring 1–2 preference points for the easiest unit-wide buck or either-sex hunt code available to adult Colorado residents. Premium buck seasons take substantially more points. Zero-point applicants can apply but should not count on drawing.
How much ground can a public-land hunter actually access?
About 30% of the unit—roughly 108 square miles—is dependably open public land on BLM, National Forest, and State Wildlife Area. An additional 9.5% is State Trust Land, but hunting there requires prior enrollment in CPW's Public Access Program. Legal access is the limiting factor; terrain walkability is a separate question.
Is this unit better for early season or rifle seasons?
Early season (archery and muzzleloader in early September) coincides with the velvet-shed phase, when deer are not in rut and are more dispersed. Rifle seasons span from early September through late November, with the 3rd and 4th rifles falling during the primary rut when deer behavior shifts more predictably. Choice depends on weapon and hunt preferences.
When does the weather get serious here?
September highs average 67°F with minimal snowfall; October cools to highs around 53°F with average snowfall of 3.6 inches. November is substantially colder, with highs near 40°F and average snowfall of 10 inches. The season cools consistently through the fall, making late-season hunting decidedly winter hunting.
Where should a hunter expect to find deer as the season progresses?
Deer occupy Summer Range across the entire unit early on. Migration Corridors cover 35% of the unit, so significant movement occurs as conditions change. Winter Range covers 22% of the unit with a Winter Concentration layer on 9%, indicating that as fall advances and snow accumulates, deer shift toward lower or more sheltered ground where they cluster. Exact timing depends on weather.
What is the draw difficulty label actually measuring?
The moderate (1–2 points) rating describes the easiest unit-wide buck or either-sex hunt available to adult Colorado residents in the primary draw. It does not cover private-land-only or Ranching for Wildlife hunts, which are valid only with permission from the program operator. Other weapons, other seasons, and nonresident applicants typically require more points.
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.