Colorado GMU 481 Mule Deer Hunting
Chaffee County, central Colorado · 283 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 481 is like
GMU 481 spans 283 square miles in Chaffee County's central mountains, covering terrain that ranges from 7,600 feet to 14,400 feet with a typical elevation near 10,900 feet. The country is mixed, with substantial steep ground: 32 percent gentle slope, 34 percent moderate, 31 percent steep, and 3 percent rugged by area. The seasonal swings in weather are significant. September highs average 60°F with minimal snowfall, but October cools to 49°F with 4.6 inches of average snowfall, and November drops to 38°F highs with 9.1 inches—conditions that reshape both mule deer behavior and hunter opportunity across the fall.
Public land comprises about 77 percent of the unit (roughly 216 square miles)—primarily National Forest, with smaller holdings of BLM and State Wildlife Area land. An additional 3.3 percent is Colorado State Trust Land, huntable only where CPW has enrolled it in the Public Access Program; hunters should verify enrollment before planning. The remaining 20 percent is private. National Forest dominates at 75 percent of total unit area, making it the primary hunting ground.
Mule deer summer range covers 100 percent of the unit, while 33 percent qualifies as winter range and 11 percent concentrates winter use. Migration corridors occupy 5 percent. This distribution means summer through early fall finds mule deer broadly distributed, but as conditions cool and snow accumulates from October onward, deer are expected to concentrate and shift toward winter ground. A foot hunter must be prepared for the mixed terrain: gentle and moderate slopes offer mobility, but steep country requires fitness and route-finding skill, particularly above mid-elevation as the season progresses and snow develops.
The unit offers five public-land seasons: Archery (September 2–30), Muzzleloader (September 12–20), Early Rifle (September 12–20), 2nd Rifle (October 24–November 1), and 3rd Rifle (November 7–15). Three of these are rifle seasons. Archery, Muzzleloader, and Early Rifle fall during the Velvet Shed phase when bucks remain in bachelor groups and are less responsive to rut behavior. The 2nd Rifle season straddles the Early Fall Migration and Early Pre-Rut phases, catching deer on the move and beginning to shift range. The 3rd Rifle season spans Early Pre-Rut staging and the Primary Rut itself (November 11–25), offering the highest likelihood of rutting-phase hunting. Draw difficulty for the easiest unit-wide buck or either-sex code is Moderate, requiring 1–2 preference points for an adult Colorado resident. Hunter pressure is low overall.
Terrain & elevation
- Elevation
- 7,600–14,400 ft, typically around 10,900 ft
- Steepness
- Rugged — mean slope 18.6°
- Slope breakdown
- 32% gentle · 34% moderate · 31% steep · 3% rugged
- Ground you can count on
- ~216 sq mi, plus ~9 sq mi of State Trust Land where access depends on enrollment
Land & access
About 77% of GMU 481 is public land a hunter can count on — National Forest, BLM and State Wildlife Areas. A further 3% is State Trust Land, which is huntable only where CPW has enrolled it.
- National Forest75%
- BLM<1%
- State Wildlife Area<1%
- State Trust Land3%
- Unclassified ownership<1%
- Private20%
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 481 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
- Winter Range33%used in winter
- Winter Concentration11%where mule deer bunch up in winter
- Migration Corridors5%movement between ranges, not residence
Mule Deer seasons & weapons (2026)
| Season | Dates | Tags offered |
|---|---|---|
| Archery | September 2 – September 30 | Buck |
| Muzzleloader | September 12 – September 20 | Doe, Buck |
| 2nd Rifle | October 24 – November 1 | Buck |
| 3rd Rifle | November 7 – November 15 | Buck |
| Early Rifle | September 12 – September 20 | Buck |
| Private-land only | September 1 – November 15 | 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 60°F, lows around 34°F, about 0.8 in of snow (mid-elevation normals)
- October — highs around 49°F, lows around 25°F, about 4.6 in of snow (mid-elevation normals)
- November — highs around 38°F, lows around 14°F, about 9.1 in of snow (mid-elevation normals)
GMU 481 mule deer hunting FAQ
Can a hunter with zero preference points draw a tag here?
No. The easiest unit-wide buck or either-sex hunt for an adult resident draws at 1–2 preference points, so at least one point is necessary. Other seasons and weapon types, particularly premium buck hunts, require substantially more points.
Which season offers the best chance of hunting during the rut?
The 3rd Rifle season (November 7–15) is the only public hunt that includes the Primary Rut phase (November 11–25), making it the most reliable for rut behavior. The 2nd Rifle season (October 24–November 1) overlaps Early Pre-Rut staging but misses the peak rut window.
How much of the unit is steep enough to be challenging for a foot hunter?
Thirty-four percent of the unit is steep slope and 3 percent is rugged, meaning roughly a third of the terrain requires significant climbing fitness and route-finding. The remaining 66 percent splits between gentle (32 percent) and moderate (34 percent) slope, offering more approachable ground, though scattered steep sections are common throughout.
Does mule deer distribution change noticeably as the season progresses?
Yes. Summer range covers the entire unit, but winter range occupies only 33 percent, with 11 percent marked as winter concentration. As October and November temperatures drop and snowfall increases, deer are expected to consolidate toward winter ground, though timing and extent depend on weather and snow depth. A hunter in November should anticipate finding concentrated deer on winter range rather than the broad distribution of September.
Is State Trust Land here reliably open to hunting?
Not necessarily. About 3.3 percent of the unit is State Trust Land, but only parcels enrolled in CPW's Public Access Program may be hunted. A hunter must verify enrollment status before planning to hunt these parcels; they are not automatically open like the National Forest and BLM ground.
What does the low hunter pressure mean for the actual experience?
Low hunter pressure indicates few hunters on the ground overall, which can make the unit less crowded than nearby alternatives. However, pressure does not determine terrain difficulty or ease of access: steep country, mixed elevation, and the need to locate concentrated winter deer still require effort and skill, particularly later in the season.
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.